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) COCCNC(=O)c1c[nH]c2ccc(S(=O)(=O)Nc3ccc(F)cc3F)cc2c1=O
(b) CCOc1ccc(N2CC(O)(c3ccc(F)cc3)[N+]3=C2CCCC3)cc1.[Br-]
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}