Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocking compound?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) COc1cc2c(c(OCC(=O)NC(C)C)c1)C(=O)O[C@@H](C)CCCC(=O)CCCCC2
(b) O=Cc1ccc(OCc2cccc(C(F)(F)F)c2)cc1O
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}