Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] CCCOc1ccc(NC(=O)CC2C(=O)N(CC)C(=S)N2CCCN2CCN(Cc3ccccc3)CC2)cc1
[b] Cc1ccc(S(=O)(=O)N2CCCC(C(=O)NCc3cccnc3)C2)cc1Cl
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}