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) Cc1ccc(C)c(OCC(O)CN2CCC(CN3C(=O)c4cccc5cccc(c45)C3=O)CC2)c1.Cl
(b) O=C(NC(=S)Nc1ccc2c(c1)OCCO2)c1ccccc1F
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}