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. CCOc1ccccc1NC(=O)CSc1nc2c(c(=O)n1C)SC(C)C2
b. CCCNC(=O)Cn1c(=O)/c(=C\c2ccc(-c3cccc([N+](=O)[O-])c3)o2)s/c1=C\C(=O)C(C)(C)C
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}