Task: Please estimate if the molecule with the SMILES CC1(C)CC(=O)C2=C(C1)OC1=C(C2)C(=O)CC(C)(C)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}
CC1(C)CC(=O)C2=C(C1)OC1=C(C2)C(=O)CC(C)(C)C1
CC1(C)CC(=O)C2=C(C1)OC1=C(C2)C(=O)CC(C)(C)C1
3,3,6,6-tetramethyl-4,5,7,9-tetrahydro-2H-xanthene-1,8-dione