Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocking compound?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] COc1ccc(CNC(=O)C(C)OC(=O)CN2C(=O)COc3ccccc32)cc1
[b] O=C1CC2(CCN(C(=O)C3CC(=O)N(c4ccc(F)cc4)C3)CC2)Oc2ccccc21
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}