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 additional words.
Options:
[a] CCCCC1=CC2=CC(=O)C(C)(OC(=O)CC)C(=O)C2=CN1CCN1CCOCC1
[b] CCOC(=O)c1nc2cc3n(c(C)c-2c1C)C(C)C(CC)=C3C.Cl
Answer: b
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}