Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) CC1CCN(CCCNC(=O)CN2C(=O)CSc3ccc(S(=O)(=O)N4CCC(C)CC4)cc32)CC1
(b) CCOc1ccc(C2N(c3ccc(F)cc3)C(=O)C3CCCN32)cc1OC
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}