Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] CC(NC(=O)c1ccccc1OC(F)F)c1ccc(-n2ccnc2)cc1
[b] CCN(CC(=O)Nc1c(F)cccc1F)C(=O)C(C)SCc1nc2sc(C)c(C)c2c(=O)[nH]1
Answer: a
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}