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 other words.
Options:
(a) CCOc1cc(CN2CCN(CCc3ccccc3)C(CCO)C2)ccc1OC
(b) CCCCCC(=O)NCc1c(C(F)(F)F)nn(C)c1N1CCOCC1
(c) Cc1ccc(S(=O)(=O)NNC(=S)NC(C)(C)C)cc1
(d) COc1ccc(N(CC(=O)N2CCN(c3cccc(C)c3)C(C)C2)S(=O)(=O)c2c(C)n[nH]c2C)cc1
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}