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) CC(C)(C)NC(=O)[C@]1(C)CCC[C@@]2(C)C3CC[C@@]4(C)C[C@]3(CCC21)CC4=O
(b) COc1cccc(C(=O)Nc2c3c(nc4c2CCC4)CCCC3)c1
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}