Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a CCOC(=O)N1CCC(O)(CN2CC[C@H](N3C(=O)Cc4ccccc43)C2)CC1
b COC(C)(C)c1cnc2n1C[C@H](c1cccc(F)c1F)CC[C@H]2NC(=O)N1CCC2(CC1)OC(=O)Nc1ncccc12
c Fc1ccc(C(OC2CC3CCC(C2)N3CC2CC2)c2ccc(F)cc2)cc1
d O=C([O-])C1=C[N+](C2CC2)=C2C=C(N3CC[NH2+]CC3)C(F)=C[C@H]2C1=O
Answer: d
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_blocker#not &NULL}a {herg_blocker__names__noun}?
Constraint: You must select none, one or more options from {%multiple_choice_enum%2-5%aA1} without using any {#other|additional!} words.
Options:
{SMILES%herg_blocker%}
Answer: {%multiple_choice_result}
(4aR)-1-cyclopropyl-6-fluoranyl-4-oxidanylidene-7-piperazin-4-ium-1-yl-4aH-quinolin-1-ium-3-carboxylate