If you are using the app, please report this problem there. (The options in the website version are too limited.)
I think it is a quirk of Duolingo though. If a word means different things in different contexts, only one of those meanings can be displayed here. Phrases with some context would have avoided this problem.
(locative) - "wako huko" = "they are there"
(possessive) - "mti wako" = "your (sg) tree"
kiaraabraga, please check the discussion before posting. Your question was asked and answered 3 years ago.
You might also find this lesson on possessives and associatives helpful: