Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker?
Constraint: You must select none, one or more options from a, b, c, d, or e without using any additional words.
Options:
a Cc1cccn2c(=O)c3cc(C#N)c(=NC(=O)c4cccnc4)n(CC4CCCO4)c3nc12
b C/C(=N\NC(=O)C1CC1)c1ccc(OC(F)F)cc1
c O=C(c1cc2nc(-c3cccs3)cc(C(F)(F)F)n2n1)N1CCCc2ccccc21
d COc1ccc(-c2nn(-c3ccccc3)cc2CNC(=O)c2cccc([N+](=O)[O-])c2)cc1
e COc1ccc(C(=O)OCn2nnc3ccccc3c2=O)cc1[N+](=O)[O-]
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}