Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a, b, c, or d without using any other words.
Options:
a: Fc1ccc(/C=N/NC2=Nc3cccc4cccc2c34)cc1
b: Cc1cc(C)nc(/N=C(\N)Nc2ccc(SC(F)F)cc2)n1
c: COC(=O)c1cc(=O)n2c(sc3ccccc32)c1C#N
d: CCn1c(CN2c3ccccc3Sc3ccccc32)n[nH]c1=S
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}