items:
house:
- bathroom:
- toothbrush
- soap
- bedroom:
- bed:
- pillow
- sheet
- closet:
- clothes:
- underwear
- socks
garden:
- treehouse:
- toys:
- nerfgun
- car
- window
- garage:
- car
- toolbox:
- hammer
- scewdriver
- pliers
- lawnmower
Here is another try at this document, it has no compound list (I guess that's how it's called).
items2:
house:
- bathroom:
- toothbrush
- soap
- bedroom:
- bed:
- pillow
- sheet
- closet:
- clothes:
- underwear
- socks
Which of those two yaml documents are valid ? I'm still wondering if I can use a list of keyed lists like that (nested list ?):
items:
- list1:
-itemA
-itemB
- list2:
-itemC
-itemD
You can use this to check if your yaml is ok: yamlint
It's seems ok.