Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a. COc1ccc(Cl)cc1NC(=O)CN(C)C(=O)c1ccc2c(c1)CC(c1ccccc1)OC2=O
b. O=[N+]([O-])c1cccc(-c2nnc3c4ccccc4c4ccccc4n23)c1
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}