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, b, or c without using any other words.
Options:
[a] COc1ccc(S(=O)(=O)Nc2ccccc2-c2nnn(CC(=O)Nc3ccccc3OC)n2)cc1
[b] COc1ccccc1C1(O)CCN(CC(=O)Nc2nc(-c3ccccc3)cs2)CC1
[c] CCCCOc1ccc(NC(=O)CN2CCN(Cc3ccccc3)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}