Task: Please predict if the molecule with the SMILES O=c1c2ccccc2[nH]c(=S)n1Cc1cccs1 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-sulfanylidene-3-(thiophen-2-ylmethyl)-1H-quinazolin-4-one