Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a: CCn1cc(C(=O)O)c(=O)c2cnc(N3CCN(C(=S)NC(=O)c4ccc(OC)cc4)CC3)nc21
b: NS(=O)(=O)c1ccc(CNC(=O)c2cc(-c3cccnc3)nc3ccc(Cl)cc23)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}