Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
a) N/C(Cc1ccc([N+](=O)[O-])cc1)=N\OC(=O)c1cccc(Br)c1
b) CCOC(=O)C1(Cc2ccccc2)C(=O)N(CCCN(C)C)c2ccccc21.Cl
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}