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 or b without using any additional words.
Options:
a) NC(=O)c1ccc(-n2nnnc2SCC(=O)Nc2ccccc2-c2ccccc2)cc1
b) COC(CNC(=O)c1cn(C)c2ccc(S(=O)(=O)N(C)C3CCCCC3)cc2c1=O)OC
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}