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. NS(=O)(=O)c1ccc(NC(=O)Nc2ccc(S(N)(=O)=O)cc2)cc1
b. COc1ccc([N+](=O)[O-])cc1NC(=O)c1cn(-c2ccc(C)c(C)c2)c(=O)c2ccccc12
Answer: a, b
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_inhib#not &NULL}a {herg_inhib__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_inhib%}
Answer: {%multiple_choice_result}