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 or b without using any additional words.
Options:
a. COC(=O)C1(CNC(=O)c2cc(Cl)cc(Cl)c2)CCN(Cc2cccc(C(F)(F)F)c2)CC1
b. COC(=O)C(CCC(=O)N(C)CCCc1nc2ccccc2[nH]1)(c1ccc(Br)cc1)C(C)C
Answer: b
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 5-[3-(1H-benzimidazol-2-yl)propyl-methylamino]-2-(4-bromophenyl)-5-oxo-2-propan-2-ylpentanoate