Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a OCCN=Cc1c(O)[nH]c2ccccc12
b O=C(CCCc1ccccc1)N1CCN(C2CCCCC2)CC1
c COc1ccc(-n2cc(C(=O)Nc3cc([N+](=O)[O-])ccc3OC)c3ccccc3c2=O)cc1
d CCOC(=O)c1cc2n(n1)C(C(F)(F)F)CC(C)N2
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}