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 additional words.
Options:
a C=C1C[C@@]23CCC4[C@@](C)(CCC[C@@]4(C)C(=O)OC)C2CC[C@]1(OC(C)=O)C3
b O=C(COC(=O)/C=C/c1ccc(Br)o1)Nc1ccccc1F
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}