Task: Please estimate if the molecule with the SMILES O=C(O)c1cc2nc(-c3ccccc3)cc(-c3ccccc3)n2n1 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}
5,7-diphenylpyrazolo[1,5-a]pyrimidine-2-carboxylic acid