Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) COC(=O)N(NC(=O)c1c(CN2CCNCC2)c(-c2ccccc2)nc2c(F)cccc12)c1ccccc1
(b) COC1COCCC1N[C@@H]1C[C@H]2CN(C3COC3)C[C@@]2(C(=O)N2CCc3ncc(C(F)(F)F)cc3C2)C1
Answer: a
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}
methyl N-[[8-fluoro-2-phenyl-3-(piperazin-1-ylmethyl)quinoline-4-carbonyl]amino]-N-phenylcarbamate