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 or b without using any additional words.
Options:
a: CCOCCCn1c(SCC(=O)Nc2ccc(NC(C)=O)cc2)nc2ccccc2c1=O
b: CCOc1ccc(C(=O)NCC(=O)NCC(c2ccc(OC)cc2)N2CCOCC2)cc1OCC
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}