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] O=C1c2ccccc2C2(c3cc(C(F)(F)F)cc(C(F)(F)F)c3)NCCN12
[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}