Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CCNC(=O)C1CC(=O)N(CCCc2ccccc2)C(=Nc2ccccc2)S1
(b) CCC(C)Oc1ccc(/C=C/c2[nH]c(=O)[nH]c(=O)c2[N+](=O)[O-])cc1OC
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}