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) CCCCN1CC[C@H]2C=CC[C@@H](C(=O)Nc3ccc(OC)cc3)[C@H]2C1=O
(b) COc1ccc(C)cc1NC(=O)c1ccc(S(=O)(=O)N2CCCCC2)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}