Added paths and a few buildings.
Added a few ponds in Ueno Zoo.
Fixed island/islet confusion. Set inner relations.
Added a few buildings in Santa Ana Zoo.
Added paths + adjusted streams and bridges.
Tried to fix a building with a hole.
Added ponds and paths in Tama Zoo.
Traced paths around the hill top.
Tried to trace paths around "Nandaro-Zaka".