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 other words.
Options:
(a) O=c1c2c3c(sc2nc(N2CCNCC2)n1CCc1ccccc1)CCCCC3
(b) CC1=C(n2nnc([N+](=O)[O-])n2)C(c2cccnc2)C(C#N)=C(N)O1
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}