Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. O=C(NCN1C(=O)C2C3C=CC(C3)C2C1=O)Nc1nccs1
b. CN1OCC2Cn3c(nc4ccccc43)C21
c. O=C(Nc1ccc2c3c(cccc13)CC2)c1cccc([N+](=O)[O-])c1
d. O=[N+]([O-])c1nn(-c2ccccc2)n(O)c1=NCc1ccc2c(c1)OCO2
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}