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. CCS(=O)(=O)c1nc(S(=O)(=O)c2ccc(C)cc2)c(N2CC(C)OC(C)C2)s1
b. O=C(COC(=O)c1ccc[nH]c1=O)Nc1ccc2c(c1)OC(F)(F)O2
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}