Task: Please answer the multiple choice question.
Question: Which molecules are not a 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)CSc1nc2cc([N+](=O)[O-])ccc2n1-c1cccc(C(F)(F)F)c1
b O=C1CC(c2cc([N+](=O)[O-])ccc2Cl)c2c(ccc3ccccc23)N1
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}