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. COc1cc2c(C)nc(C)c(C#N)c2cc1OC.Cl
b. CCOC(=O)CC1CCCCN1Cc1cn[nH]c1-c1ccc(F)cc1F
c. COc1ccc(OCCC(=O)Nc2ccc(S(N)(=O)=O)cc2)cc1
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}