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: COC(=O)c1ccc([C@@H]2C[C@H]3CN(Cc4cccnc4)C(=O)[C@]34CCCN24)cc1
b: CCC(Sc1ncnc2c1c(-c1ccccc1)cn2-c1ccc(OC)cc1)C(=O)OC
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}