Task: Please answer the multiple choice question.
Question: Which molecules are a human ether-à-go-go related gene (hERG) blocker (<10uM)?
Constraint: You must select none, one or more options from a or b without using any other words.
Options:
(a) O=C(c1cc(Cc2c[nH]c(=O)c3cc(Cl)c(Cl)n23)ccc1F)N1CCC(N2CCCC2)CC1
(b) NS(=O)(=O)c1ccncc1-c1nc(NCc2ccccn2)c2c(-c3ccccc3)cccc2n1
Answer: a
Task: Please answer the multiple choice question.
Question: Which molecules are {herg_blocker#not &NULL}a {herg_blocker__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_blocker%}
Answer: {%multiple_choice_result}
6,7-dichloro-4-[[4-fluoro-3-(4-pyrrolidin-1-ylpiperidine-1-carbonyl)phenyl]methyl]-2H-pyrrolo[1,2-a]pyrazin-1-one