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, c, or d without using any additional words.
Options:
a: Cc1ccc(-n2c(=O)c3c4c(sc3n(Cc3cc(=O)n5ccccc5n3)c2=O)CCC4)cc1C
b: CCCCn1c(-c2ccco2)nc2ccccc2c1=O
c: COc1ccc(NC(=O)c2cccc(S(=O)(=O)N3CCCC3)c2)cc1OC
d: COc1ccc(CCNC(=S)Nc2cccc3ccccc23)cc1
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}