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) CCCCCN(C(=O)NC(=O)Nc1ccc(C)cc1C)S(C)(=O)=O
(b) O=c1[nH]c(O)c(N=Nc2cccc(S(=O)(=O)N3CCOCC3)c2)c(=O)[nH]1
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}