Task: Please answer the multiple choice question.
Question: Which molecules are not a hERG blocking compound (IC50 < 10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
[a] CCCC(C)c1nnc(NC(=O)c2cc(C(=O)OC)cc([N+](=O)[O-])c2)s1
[b] O=C(NNc1nc2c(F)cccc2s1)c1cc(=O)c2ccccc2o1
Answer: 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}