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 additional words.
Options:
a Cc1ccc(C(=O)O)cc1N1C(=O)c2cccc3c([N+](=O)[O-])ccc(c23)C1=O
b CC1CCc2c(sc(NC(=O)c3ccc(Cn4cc(Br)cn4)o3)c2C(N)=O)C1
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}