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 additional words.
Options:
a O=c1[nH]c(C2CCCN(S(=O)(=O)c3ccccc3)C2)nc2c1nnn2Cc1ccccc1
b O=C1[C@@H]2[C@H](Cc3ccc(O)cc3)N[C@]3(C(=O)Nc4ccccc43)[C@@H]2C(=O)N1c1ccc(F)cc1
Answer: a, 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}