Task: Please estimate if the compound with the SMILES c1ccc(N2CCN(c3ncnc4scc(-c5cccs5)c34)CC2)cc1 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}
4-(4-phenylpiperazin-1-yl)-5-thiophen-2-ylthieno[2,3-d]pyrimidine