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: COc1ccc(Cn2nnc(C(=O)Nc3ccc4c(c3)OCCO4)c2N)cc1Br
b: O=C(c1cc(-c2ccc(Cl)cc2)n(-c2ccc(Cl)cc2Cl)n1)N1CCOCC1
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}