Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, or c without using any other words.
Options:
a.) COCCN(C(=O)c1cccc(-n2cnnn2)c1)c1c(N)n(CC(C)C)c(=O)[nH]c1=O
b.) Clc1ccc(SCCCCn2ccnc2)cc1
c.) Brc1ccc(C2C3=C(Nc4ncnn42)c2ccccc2OC3c2ccncc2)cc1
Answer: 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}