Transaction Details
The contract call From 0x8D2b9267...8Ab71FDe0 To 0xaC041Df4...50C5f2e9D produced 2 Internal Transactions
Type Trace Address | From | To | Value | Gas Limit | |
---|---|---|---|---|---|
call_0_1 | 0xaC041Df4...50C5f2e9D | 0xB28Ca7e4...ba553CF82 | 491 S | 1,360,863 | |
call_0_1_1 | 0xB28Ca7e4...ba553CF82 | 0x039e2fB6...3bc94aD38 | 491 S | 1,324,781 |
AA Txn Hash | Method | Position | From | Internal Txns | Token Txns | NFT Txns | Txn Fee (ETH) | Gas Limit |
---|
Transaction Receipt Event Logs
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x0000000000000000000000000000000000000000
- 2: to 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
Data
- value :491000000000000000000
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Deposit (index_topic_1 address account, uint256 value)View Source
Topics
- 0 0xe1fffcc4923d04b559f4d29a8bfc6cda04eb5b0d3c460751c2402c5c5cc9109c
- 1: account 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
Data
- value :491000000000000000000
-
Address
- 0x29219dd400f2bf60e5a23d13be72b486d4038894 (Sonic Labs: Bridged USDC.e Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x9f46dd8F2A4016C26c1Cf1f4ef90e5E1928D756B
- 2: to 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
Data
- value :26265270
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: to 0x9f46dd8F2A4016C26c1Cf1f4ef90e5E1928D756B
Data
- value :58750981820747256278
Name
Swap (index_topic_1 address sender, index_topic_2 address recipient, int256 amount0, int256 amount1, uint160 price, uint128 liquidity, int24 tick)View Source
Topics
- 0 0xc42079f94a6350d7e6235f29174924f928cc2ac818eb64fed8004e115fbcca67
- 1: sender 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: recipient 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
Data
- amount0 :58750981820747256278
- amount1 :-26265270
- price :52987906623090535852473
- liquidity :1506575735211947264
- tick :-284370
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: to 0x3987a13D675c66570bC28c955685a9bcA2dCF26e
Data
- value :432249018179252743722
-
Address
- 0x71e99522ead5e21cf57f1f542dc4ad2e841f7321 (Metropolis: METRO Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x1a5Ded6adCfc64aceDE86151B1F142088C6E03da
- 2: to 0xE3F132867fC5cbb95D21C53c00647E8e7Cd6CF97
Data
- value :0
-
Address
- 0x71e99522ead5e21cf57f1f542dc4ad2e841f7321 (Metropolis: METRO Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x1a5Ded6adCfc64aceDE86151B1F142088C6E03da
- 2: to 0xF23cB940Ba6eb07FE695746c63EcA8Db34aC4113
Data
- value :223307291712400000
Name
PositionModified (index_topic_1 uint256 pid, index_topic_2 address account, int256 deltaAmount, uint256 metroReward)View Source
Topics
- 0 0x0e006e790dc8db480892a6d5c0bf539c411db278e5185b07d46bdcc110ba6af5
- 1: pid 17
- 2: account 0xF23cB940Ba6eb07FE695746c63EcA8Db34aC4113
Data
- deltaAmount :0
- metroReward :223307291712400000
Name
Swap (index_topic_1 address sender, index_topic_2 address to, uint24 id, bytes32 amountsIn, bytes32 amountsOut, uint24 volatilityAccumulator, bytes32 totalFees, bytes32 protocolFees)View Source
Topics
- 0 0xad7d6f97abf51ce18e17a38f4d70e975be9c0708474987bb3e26ad21bd93ca70
- 1: sender 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: to 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
Data
- id :8388603
- amountsIn :00000000000000176E80E16814D0F3F800000000000000000000000000000000
- amountsOut :00000000000000000000000000000000000000000000001771086CDA2760182D
- volatilityAccumulator :15000
- totalFees :000000000000000000A079E563A1E8C800000000000000000000000000000000
- protocolFees :000000000000000000281E7958E87A3200000000000000000000000000000000
-
Address
- 0xb1e25689d55734fd3fffc939c4c3eb52dff8a794 (Origin Protocol: OS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x3987a13D675c66570bC28c955685a9bcA2dCF26e
- 2: to 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
Data
- value :432419993305638508589
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xa76Beaf111BaD5dD866fa4835D66b9aA2Eb1FdEc
- 2: to 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
Data
- value :432248276361734452819
-
Address
- 0xb1e25689d55734fd3fffc939c4c3eb52dff8a794 (Origin Protocol: OS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: to 0xa76Beaf111BaD5dD866fa4835D66b9aA2Eb1FdEc
Data
- value :432419993305638508589
Name
Swap (index_topic_1 address sender, index_topic_2 address recipient, int256 amount0, int256 amount1, uint160 price, uint128 liquidity, int24 tick)View Source
Topics
- 0 0xc42079f94a6350d7e6235f29174924f928cc2ac818eb64fed8004e115fbcca67
- 1: sender 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: recipient 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
Data
- amount0 :-432248276361734452819
- amount1 :432419993305638508589
- price :79239937003033684995956730822
- liquidity :15966409275864353988249344941
- tick :2
-
Address
- 0x50c42deacd8fc9773493ed674b675be577f2634b (Sonic Labs: WETH Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xfe809A1D337Bdfc98B77A1067e3819f66d8AD23F
- 2: to 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
Data
- value :5816057548529749
-
Address
- 0x29219dd400f2bf60e5a23d13be72b486d4038894 (Sonic Labs: Bridged USDC.e Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: to 0xfe809A1D337Bdfc98B77A1067e3819f66d8AD23F
Data
- value :15188884
Name
Swap (index_topic_1 address sender, index_topic_2 address recipient, int256 amount0, int256 amount1, uint160 sqrtPriceX96, uint128 liquidity, int24 tick)View Source
Topics
- 0 0xc42079f94a6350d7e6235f29174924f928cc2ac818eb64fed8004e115fbcca67
- 1: sender 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: recipient 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
Data
- amount0 :15188884
- amount1 :-5816057548529749
- sqrtPriceX96 :1551356158335170631123630005302286
- liquidity :6442419375182352
- tick :197656
-
Address
- 0x29219dd400f2bf60e5a23d13be72b486d4038894 (Sonic Labs: Bridged USDC.e Token)
Name
Approval (index_topic_1 address owner, index_topic_2 address spender, uint256 value)View Source
Topics
- 0 0x8c5be1e5ebec7d5bd14f71427d1e84f3dd0314c0f7b2291e5b200ac8c7c3b925
- 1: owner 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: spender 0xBA12222222228d8Ba445958a75a0704d566BF2C8
Data
- value :5927470
Name
SwapParams (uint256[] balances, tuple invariant, uint256 amount)View Source
Topics
- 0 0x4e1d56f7310a8c32b2267f756b19ba65019b4890068ce114a25009abe54de5ba
Data
- 0000000000000000000000000000000000000000000000000000000000000080
- 0000000000000000000000000000000000000000000002222df3a9bc0d3cffd8
- 0000000000000000000000000000000000000000000002222df3a9bc0d3cffd2
- 00000000000000000000000000000000000000000000000067d84c1b23280ae6
- 0000000000000000000000000000000000000000000000000000000000000002
- 00000000000000000000000000000000000000000000004838119bd80a12b000
- 000000000000000000000000000000000000000000000cd1306f2409cbb1da84
-
Address
- 0xba12222222228d8ba445958a75a0704d566bf2c8 (Beets: Vault V2)
Name
Swap (index_topic_1 bytes32 poolId, index_topic_2 address tokenIn, index_topic_3 address tokenOut, uint256 amountIn, uint256 amountOut)View Source
Topics
- 0 0x2170c741c41531aec20e7c107c24eecfdd15e69c9bb0a8dd37b1840b9e0b207b
- 1: poolId 308EBEA1DC4EAD75F0AEBD1569E39354E26AE9E600020000000000000000009C
- 2: tokenIn 0x29219dd400f2Bf60E5a23d13Be72B486D4038894
- 3: tokenOut 0x50c42dEAcD8Fc9773493ED674b675bE577f2634b
Data
- amountIn :5927470
- amountOut :2267519533428404
-
Address
- 0x29219dd400f2bf60e5a23d13be72b486d4038894 (Sonic Labs: Bridged USDC.e Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: to 0xBA12222222228d8Ba445958a75a0704d566BF2C8
Data
- value :5927470
-
Address
- 0x50c42deacd8fc9773493ed674b675be577f2634b (Sonic Labs: WETH Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xBA12222222228d8Ba445958a75a0704d566BF2C8
- 2: to 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
Data
- value :2267519533428404
-
Address
- 0x29219dd400f2bf60e5a23d13be72b486d4038894 (Sonic Labs: Bridged USDC.e Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: to 0x56B404073C990E828691aF936bcfFf710f6c97A1
Data
- value :5148916
-
Address
- 0x71e99522ead5e21cf57f1f542dc4ad2e841f7321 (Metropolis: METRO Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x1a5Ded6adCfc64aceDE86151B1F142088C6E03da
- 2: to 0xE3F132867fC5cbb95D21C53c00647E8e7Cd6CF97
Data
- value :0
-
Address
- 0x71e99522ead5e21cf57f1f542dc4ad2e841f7321 (Metropolis: METRO Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x1a5Ded6adCfc64aceDE86151B1F142088C6E03da
- 2: to 0xF8b4Bf5923103F0C69dEeDd96B967271FFf03810
Data
- value :83007812517000000
Name
PositionModified (index_topic_1 uint256 pid, index_topic_2 address account, int256 deltaAmount, uint256 metroReward)View Source
Topics
- 0 0x0e006e790dc8db480892a6d5c0bf539c411db278e5185b07d46bdcc110ba6af5
- 1: pid 9
- 2: account 0xF8b4Bf5923103F0C69dEeDd96B967271FFf03810
Data
- deltaAmount :0
- metroReward :83007812517000000
Name
Swap (index_topic_1 address sender, index_topic_2 address to, uint24 id, bytes32 amountsIn, bytes32 amountsOut, uint24 volatilityAccumulator, bytes32 totalFees, bytes32 protocolFees)View Source
Topics
- 0 0xad7d6f97abf51ce18e17a38f4d70e975be9c0708474987bb3e26ad21bd93ca70
- 1: sender 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: to 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
Data
- id :8374375
- amountsIn :000000000000000000000000004E845500000000000000000000000000000000
- amountsOut :0000000000000000000000000000000000000000000000009FABAEB2094C48F9
- volatilityAccumulator :11293
- totalFees :0000000000000000000000000000327D00000000000000000000000000000000
- protocolFees :00000000000000000000000000000C9F00000000000000000000000000000000
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x56B404073C990E828691aF936bcfFf710f6c97A1
- 2: to 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
Data
- value :11505481752731470073
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: to 0xC589F94D867DBE58D8F9bf9C76BE58eFD45201BF
Data
- value :63790659604508972953
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xC589F94D867DBE58D8F9bf9C76BE58eFD45201BF
- 2: to 0xaC041Df48dF9791B0654f1Dbbf2CC8450C5f2e9D
Data
- value :83853602612628960888
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xC589F94D867DBE58D8F9bf9C76BE58eFD45201BF
- 2: to 0x5159aCf74f3fD99822827492080599Fcd6Ede4C7
Data
- value :637906596045089729
Name
Fees (index_topic_1 address sender, uint256 amount0, uint256 amount1)View Source
Topics
- 0 0x112c256902bf554b6ed882d2936687aaeb4225e8cd5b51303c90ca6cf43a8602
- 1: sender 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
Data
- amount0 :637906596045089729
- amount1 :0
Name
Sync (uint256 reserve0, uint256 reserve1)View Source
Topics
- 0 0xcf2aa50876cdfbb541206f89af0ee78d44a2abf8d328e37fa4917f982149848a
Data
- reserve0 :33789751889347554618639
- reserve1 :44781845711064803812359
Name
Swap (index_topic_1 address sender, uint256 amount0In, uint256 amount1In, uint256 amount0Out, uint256 amount1Out, index_topic_2 address to)View Source
Topics
- 0 0xd78ad95fa46c994b6551d0da85fc275fe613ce37657fb8d5e3d130840159d822
- 1: sender 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: to 0xaC041Df48dF9791B0654f1Dbbf2CC8450C5f2e9D
Data
- amount0In :63790659604508972953
- amount1In :0
- amount0Out :0
- amount1Out :83853602612628960888
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x05D7AE0E64Afe6eC0DaFde545290aE25782264bE
- 2: to 0xaC041Df48dF9791B0654f1Dbbf2CC8450C5f2e9D
Data
- value :499466065540870193027
-
Address
- 0x039e2fb66102314ce7b64ce5ce3e5183bc94ad38 (Sonic Labs: wS Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: to 0x05D7AE0E64Afe6eC0DaFde545290aE25782264bE
Data
- value :379963098509956949939
Name
Swap (index_topic_1 address sender, index_topic_2 address recipient, int256 amount0, int256 amount1, uint160 sqrtPriceX96, uint128 liquidity, int24 tick)View Source
Topics
- 0 0xc42079f94a6350d7e6235f29174924f928cc2ac818eb64fed8004e115fbcca67
- 1: sender 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: recipient 0xaC041Df48dF9791B0654f1Dbbf2CC8450C5f2e9D
Data
- amount0 :379963098509956949939
- amount1 :-499466065540870193027
- sqrtPriceX96 :91209080378196642880869781519
- liquidity :231719965827576440298288
- tick :2816
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0x15686A15755287A316C0F00EDcb80f1F054B31a4
- 2: to 0xaC041Df48dF9791B0654f1Dbbf2CC8450C5f2e9D
Data
- value :62074894503474464178
-
Address
- 0x50c42deacd8fc9773493ed674b675be577f2634b (Sonic Labs: WETH Token)
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: to 0x15686A15755287A316C0F00EDcb80f1F054B31a4
Data
- value :8083577081958153
Name
Swap (index_topic_1 address sender, index_topic_2 address recipient, int256 amount0, int256 amount1, uint160 sqrtPriceX96, uint128 liquidity, int24 tick)View Source
Topics
- 0 0xc42079f94a6350d7e6235f29174924f928cc2ac818eb64fed8004e115fbcca67
- 1: sender 0xB28Ca7e465C452cE4252598e0Bc96Aeba553CF82
- 2: recipient 0xaC041Df48dF9791B0654f1Dbbf2CC8450C5f2e9D
Data
- amount0 :8083577081958153
- amount1 :-62074894503474464178
- sqrtPriceX96 :6969541680177819992085131226252
- liquidity :297778903253849519274
- tick :89543
Name
Transfer (index_topic_1 address from, index_topic_2 address to, uint256 value)View Source
Topics
- 0 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef
- 1: from 0xaC041Df48dF9791B0654f1Dbbf2CC8450C5f2e9D
- 2: to 0x8D2b926742e69887ef8619F8B63160E8Ab71FDe0
Data
- value :645394562656973618093
Name
Swap (address sender, uint256 inputAmount, address inputToken, uint256 amountOut, address outputToken, int256 slippage, uint32 referralCode)View Source
Topics
- 0 0x823eaf01002d7353fbcadb2ea3305cc46fa35d799cb0914846d185ac06f8ad05
Data
- sender :0x8D2b926742e69887ef8619F8B63160E8Ab71FDe0
- inputAmount :491000000000000000000
- inputToken :0x0000000000000000000000000000000000000000
- amountOut :645394562656973618093
- outputToken :0x8ad39144B37741573F85aa03D6c3E817A0054161
- slippage :-88212772330275923
- referralCode :0
A transaction is a cryptographically signed instruction that changes the blockchain state. Block explorers track the details of all transactions in the network. Learn more about transactions in our Knowledge Base.