Task: Please answer the multiple choice question.
Question: Which molecules are a hERG blocker?
Constraint: You must select none, one or more options from a, b, or c without using any additional words.
Options:
a COC(CNC(=O)c1ccc(CS(=O)(=O)c2ccccc2)o1)OC
b O=C(NCCCN1CCOCC1)c1ccccc1N1C(=O)[C@@H]2Cc3c([nH]c4ccccc34)C(c3cccc(Cl)c3)N2C1=O
c COC(=O)C1Sc2[nH]c(=O)sc2C2c3ccccc3OC(=O)C12
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}