Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: O=C([O-])c1ccc(-n2cc(C3CC[NH+](CCN4CCNC4=O)CC3)c3cc(Cl)ccc32)cc1
b: CN(C)CCC=C1c2ccccc2CCc2ccccc21
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}
4-[5-chloranyl-3-[1-[2-(2-oxidanylideneimidazolidin-1-yl)ethyl]piperidin-1-ium-4-yl]indol-1-yl]benzoate