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 additional words.
Options:
a: Cc1c(CC(=O)O)c2cc(F)ccc2n1S(=O)(=O)c1ccc(S(C)(=O)=O)cc1
b: COc1ccc2nccc(C(O)C[C@@H]3CC[C@@H](NCc4ccc5c(n4)NC(=O)CS5)CO3)c2n1
Answer: b
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-[[[(3R,6S)-6-[2-hydroxy-2-(6-methoxy-1,5-naphthyridin-4-yl)ethyl]oxan-3-yl]amino]methyl]-4H-pyrido[3,2-b][1,4]thiazin-3-one