It's a tiny, uncomplicated structure right now-- but that's rather the point, I think.
Later on, I'll be expanding on those-- different types of animals, different types of plants. Equipable items will be a category under InanimateObjects. But it gets my point across.
Instead of having the tile tell us how many 'slots' of room it has in it, I'm considering letting the items tell if theres' room for any more objects. I'm not sure how that'll work with items that are multiple tiles wide and high, though. Still thinking about it.