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.) O=c1[nH]n2c(=O)c3c([nH]c2c1N=Nc1cccc(Cl)c1)CCC3
b.) O=S(=O)(c1cccc(C(F)(F)F)c1)N(CCCN1CCOCC1)Cc1cccs1
c.) COc1cccc(CC(=O)OCc2csc(CC(=O)Nc3ccccc3C)n2)c1
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}