Task: Please estimate if the compound with the SMILES S=c1nc2ccccc2c2nc(-c3ccccc3)[nH]n12 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}
S=c1nc2ccccc2c2nc(-c3ccccc3)[nH]n12
S=c1nc2ccccc2c2nc(-c3ccccc3)[nH]n12
2-phenyl-3H-[1,2,4]triazolo[1,5-c]quinazoline-5-thione