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) O=C(NCc1ccc(OC(F)(F)F)cc1)c1ccc2c(c1)S(=O)(=O)c1ccccc1C2=O
(b) Cc1c(C#N)c(O)[nH]c(=O)c1N=Nc1ccc(S(N)(=O)=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}