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) FC(F)Oc1ccc(NC(=S)NCc2nc3ccccc3[nH]2)cc1
b) CCN(CC(=O)Nc1c(F)cccc1F)C(=O)Cc1csc(-c2ccccc2)n1
c) Cc1c(C(=O)NCC2CCCO2)cccc1[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}