Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: CCCCCCCCCCc1cccc(CCCCCCCCCC)[n+]1C
b: Cc1ccc(-n2nccn2)c(C(=O)N2C[C@@H]3CN(c4nc(C)cc(C)n4)C[C@@H]3C2)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}
2,6-didecyl-1-methylpyridin-1-ium