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) CCOC(=O)N1CCC(N2Cc3cccc(C(=O)Nc4ccc(CC)cc4)c3C2=O)CC1
b) O=C(Nc1ccc(Cn2cccn2)cc1)c1ccc(COc2ccc(Br)cc2)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}