Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (IC50 less than 10uM)?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any other words.
Options:
a CCN(Cc1ccccc1)C1CCN(Cc2ccc(SC)cc2)CC1.O=C(O)C(=O)O
b CC(C)c1ccc2oc(-c3ccc(NC(=O)c4ncn[nH]4)cc3)nc2c1
c CCC(=O)Nc1ccc(NC(=O)c2ccc3ccccc3c2)cc1
d Cn1ncc([N+](=O)[O-])c1C(=O)N/N=C/c1cccc([N+](=O)[O-])c1
e COC(=O)C1CN(C(=O)C(C)Oc2ccc(F)cc2)c2ccccc2O1
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}