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) Cn1c(N)c(C(=O)CSc2nc3ccccc3[nH]2)c(=O)n(C)c1=O
(b) O=C(O)c1ccc(NC2=C(N3CCOCC3)C(=O)c3ccccc3C2=O)cc1
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}