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: CCOc1ccc(Cc2nc(C)c(CC(=O)N3CCOCC3)c(=O)[nH]2)cc1
b: COC(=O)c1ccccc1NC(=O)CSc1nc(Nc2ccccc2)nc(N2CCOCC2)n1
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}