Task: Please answer the multiple choice question.
Question: Which molecules are 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) CCOCCCn1c(SCC(=O)Nc2cc(OC)ccc2OC)nc2ccccc2c1=O
b) COc1cc(S(=O)(=O)NC2CCCCC2)c(C)cc1C
c) O=C1CC(c2ccccc2Cl)CC(O)=C1C=NCCCO
Answer: a
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}