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: O=C(c1ccc(F)cc1)N1CCC(C(=O)N2CCN(S(=O)(=O)c3ccccc3Br)CC2)CC1
b: Cc1ccc(CN(Cc2cccnc2)C(=S)Nc2cc(Cl)ccc2C)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}