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. Cc1cccc(N2CCN(CC(=O)Nc3ccccc3[N+](=O)[O-])CC2)c1C
b. Cc1cc(Cl)c(S(=O)(=O)N2CCN(c3ccccn3)CC2)cc1OCC(=O)NC1CCCCC1
Answer: a
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}