Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a, b, c, or d without using any additional words.
Options:
a. CCCCN1CC(C(=O)NCc2ccc(C)cc2)CC1=O
b. O=C(CN1C2CCCC1CC(NC(=O)c1ccccc1)C2)Nc1ccccc1
c. CCOc1ccc(S(=O)(=O)NCCC(=O)N(CC)CC(=O)Nc2c(F)cccc2F)cc1
d. CCCCCCNc1c([N+](=O)[O-])c(=O)sc2ccccc12
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}