Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: CCN1CCN(c2nc3c(c(=O)[nH]2)CCCC3)CC1
b: CN(C)CCCN(C(=O)C1COc2ccccc2O1)c1nc2ccc(F)cc2s1.Cl
c: COC(=O)c1nn(-c2ccccc2)c(Cl)c1/C=N/O
d: CCC(C)Oc1ccccc1C1CC(=O)NC2=C1C(=O)CCC2
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}