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 additional words.
Options:
[a] COC(=O)c1cccc(NS(=O)(=O)c2ccc(OC)c(C(=O)N3CCOCC3)c2)c1C
[b] CCCOc1ccc2oc(=O)c3c(c2c1)CCCN3C(=O)CN1CCN(c2ncccn2)CC1
Answer: a
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}