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) CCC1CCCCN1CCCNC(=O)CNC(=O)c1nn(-c2ccc(OC)c(Cl)c2)c(=O)c2ccccc12
b) NC(=O)C(c1ccc(F)cc1)c1ccc(C(=O)c2ccccc2)cc1
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}