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 additional words.
Options:
a. Cc1ccc(NC(=O)CN(C)C(=O)CSc2nc3ccccc3c(=O)n2Cc2ccco2)cc1
b. Cc1csc(SCC(=O)c2c(N)n(CC(C)C)c(=O)n(C)c2=O)n1
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}