Task: Please determine if the compound with the SMILES O=c1ccnc(Sc2ncccc2[N+](=O)[O-])[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}
2-(3-nitropyridin-2-yl)sulfanyl-1H-pyrimidin-6-one