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, b, or c without using any other words.
Options:
(a) [Cl-].c1ccc(CC[C@@H]2CC[C@@H](CCc3ccccc3)N2)cc1
(b) O=C(Nc1nccs1)c1ccc(COc2ccc(F)cc2)o1
(c) CCOC(=O)NNc1ccc(C(F)(F)F)cn1
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}