Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocker?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
(a) CCCC(=O)OCCNc1cc(SCCC(=O)OC)c2nonc2c1[N+](=O)[O-]
(b) CCCCN(C)CCNC(=O)c1cn(C)c(=O)c2c1c1ccccc1n2C
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}