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, b, or c without using any additional words.
Options:
a) CCN1CCC(C(N)=O)CC1
b) O=S1(=O)C=C(SCCN2CCCC2)c2ccccc21
c) Brc1ccc(CN2CCN(Cc3c[nH]c4ccccc34)CC2)cc1.O=C(O)C(=O)O
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}