Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (IC50 less than 10uM)?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a: CN(Cc1ccccc1)C(=O)c1ccc(NC2=NC3CS(=O)(=O)CC3S2)cc1
b: COc1ccc(N2CCN(C(c3ccc4ncccc4c3)c3nnnn3C(C)(C)C)CC2)cc1
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}