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. NC(=O)CC(NC(=O)Cc1cccc2ccccc12)c1ccc(NCc2ccc(F)c(F)c2)c([N+](=O)[O-])c1
b. CCOC(=O)CCc1c(C)nc(SCCN2CCCC2)c(C#N)c1C
Answer: a
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}