Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocking compound (IC50 < 10uM)?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a: COc1ccc(NC(=O)c2cccc(OS(=O)(=O)N(C)C)c2)cc1
b: COc1cccc(CN2CCC(n3nccc3NC(=O)CCOc3ccccc3)CC2)c1
c: CCCCc1ccc(NC2=NCCCS2)cc1
d: Cc1cc(Cl)ccc1OC(C)C(=O)NN=C1CCCCCC1
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}