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 additional words.
Options:
a.) O=C(CCCOc1ccccc1)N1CCN(c2ccccc2)CC1
b.) COc1ccccc1N1CCN(CCCOc2ccc(F)cc2)CC1
c.) CCOC(=O)c1cnn(-c2cc(C)nc3c(-c4ccccc4)cnn23)c1N
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}