Task: Please estimate if the compound with the SMILES CN1C(=O)/C(=C\c2cc(Br)cs2)c2ccccc21 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}
(3Z)-3-[(4-bromothiophen-2-yl)methylidene]-1-methylindol-2-one