Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a.) CN(Cc1ccccc1Cl)C(=O)C1CCC(=O)N(CCc2cccc(F)c2)C1
b.) CCCCn1c(N)c(N(CCOC)C(=O)c2ccc(C)c(S(=O)(=O)N3CCOCC3)c2)c(=O)[nH]c1=O
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}