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] COc1ccc([C@H]2CC(=O)C=C(c3ccccc3)C2)cc1
[b] CCOc1cc(C2C(C(=O)OC(C)C)=C(C)NC3=C2C(=O)CCC3)cc([N+](=O)[O-])c1O
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}