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, or c without using any additional words.
Options:
a.) O=C(/C=C/c1ccc2c(c1)OCO2)N1CCOCC1
b.) O=c1c2ccccc2nc(/C=C/c2cccc([N+](=O)[O-])c2)n1CCCO
c.) CCn1c(SCC(=O)N/N=C/C(C)=C/c2ccco2)nnc1-c1ccccc1
Answer: a, 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}