Task: Please answer the multiple choice question.
Question: Which molecules are not a human ether-à-go-go related gene (hERG) blocking compound?
Constraint: You must select none, one or more options from a or b without using any additional words.
Options:
a. O=C(c1cc2cc(Br)ccc2[nH]1)N1CCC2(CC1)OCCO2
b. Cc1ccc(Cn2c(=N)c(C(=O)NCC3CCCO3)cc3c(=O)n4cccc(C)c4nc32)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}