Task: Please estimate if the molecule with the SMILES O=C1OC(Nc2ccc(F)cc2F)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}
3-(2,4-difluoroanilino)-3H-2-benzofuran-1-one