Task: Please estimate if the compound with the SMILES O=C1C=Cc2c/c(=C3\NC4=C(CCc5ccccc54)S3)c(=O)oc2=C1 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}
O=C1C=Cc2c/c(=C3\NC4=C(CCc5ccccc54)S3)c(=O)oc2=C1
O=C1C=Cc2c/c(=C3\NC4=C(CCc5ccccc54)S3)c(=O)oc2=C1
(3Z)-3-(4,5-dihydro-1H-benzo[e][1,3]benzothiazol-2-ylidene)chromene-2,7-dione