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] COc1cccc(-n2nc(C(=O)N3CCN(Cc4ccccc4)CC3)c3ccccc3c2=O)c1
[b] COc1ccc(NC(=O)CC2Nc3cccc4cccc(c34)NC2=O)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}