Task: Please determine if the molecule with the SMILES O=c1c2ccccc2cnn1-c1nc2ccccc2[nH]1 is an inhibitor of factor XIa (FXIa).
Result: no
Task: Please {#determine|predict|estimate!} if the {#molecule|compound!} with the {SMILES__description} {SMILES#} is {MUV-846__names__noun}.
Result: {MUV-846#no&yes}
O=c1c2ccccc2cnn1-c1nc2ccccc2[nH]1
O=c1c2ccccc2cnn1-c1nc2ccccc2[nH]1
2-(1H-benzimidazol-2-yl)phthalazin-1-one