Task: Please determine if the compound with the SMILES O=c1cc(-c2ccccc2F)nc(-c2ccccc2F)o1 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=c1cc(-c2ccccc2F)nc(-c2ccccc2F)o1
O=c1cc(-c2ccccc2F)nc(-c2ccccc2F)o1
2,4-bis(2-fluorophenyl)-1,3-oxazin-6-one