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, b, c, or d without using any other words.
Options:
a. CC1(c2cccc([N+](=O)[O-])c2)CC(C)(C)N(C(=O)c2ccccc2)c2ccccc21
b. O=C(c1ccc(COc2ccccc2Br)o1)N1CCCCCC1
c. O=C(c1cnn2c(C(F)(F)F)cc(-c3ccc4c(c3)OCO4)nc12)N1CCCCC1
d. Cc1c(Cl)c([N+](=O)[O-])nn1CC(=O)N1CCCC1
Answer: a, b, c, d
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}