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, d, or e without using any additional words.
Options:
a CN(C)CCCN(C(=O)c1ccc2c(c1)CCCC2)c1nc2c(F)cccc2s1.Cl
b COc1ccc(NC(=O)C2=C(C)Nc3ncnn3C2c2ccccc2C(F)(F)F)c(OC)c1
c O=C(Nc1cc(Cl)ccc1N1CCOCC1)c1ccc(N2CCCCC2)c([N+](=O)[O-])c1
d CC(C)(C)C(=O)NC1CC2CCCC(C1)N2C(=O)Nc1cccc(Cl)c1
e O=C(O)c1ccccc1C(=O)Nc1cccc([N+](=O)[O-])c1
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}