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) CCCCCCCN1C2=NCCCN2c2ccccc21.Cl
(b) CCOC(=O)C1CCN(C(=O)COC(=O)c2ccc3[nH]c4c(c3c2)CCCC4)CC1
(c) O=C(CN1C(=O)c2cccc3cccc1c23)NCc1ccncc1
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}