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) N#Cc1ccc(S(=O)(=O)NCCCN2CC3CN(CCOc4c(F)cccc4F)CC(C2)O3)cc1
(b) c1cncc(-c2ccc(-c3noc(C4CN5CCC4CC5)n3)o2)c1
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}
5-(1-azabicyclo[2.2.2]octan-3-yl)-3-(5-pyridin-3-ylfuran-2-yl)-1,2,4-oxadiazole