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, or d without using any other words.
Options:
a. CCc1ccc2[nH]c(=O)c(CN(CC3CCCO3)C(=S)NCc3ccco3)cc2c1
b. CN1C(=S)NC(C)(C)CC1(C)c1ccc(O)cc1O
c. COc1ccc(-n2ncc3c2CC(C)(C)CC3NC(=O)C2=CC(=O)CC(C)(C)O2)cc1
d. O=C(NCCNS(=O)(=O)c1ccccc1)c1ccc([N+](=O)[O-])cc1
Answer: c
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}