Now lets take a look at phonetic subgroups in those words that are describing physical structures:
Sanctuary: Hinanjo, Naijin
Outpost: Zensho, Zenshin kichi
Coal mine: Tanko
Gold mine: kinko
Archives: Kirokushushu, Akaihushu
Arsenal: Hoyuheiki, Heikiko
Road: Michi, Doro
Market: Ichiba, Shijo
Outpost (also chi, zen subgroups)
Crypt (also chi subgroup)
City (also to subgroup)
Crypt (also shi, tsu subgroups)
Outpost (also zen, shi, and ki subgroups)
Outpost (also shi, ki and chi subgroups)
Abbey (also do subgroup)
Mausoleum (also tsu subgroup)
Cavern (also tsu subgroup)
Abbey (also shu subgroup)
City (also shi subroup)
Crypt (also chi, shi subgroups)
Cavern (also do subgroup)
Mausoleum (also do phonetic)
Tavern (also sa subgroup)
Tavern (also ka subgroup)
Quarry (shi subgroup)
Outpost (zen, shi, chi subgroups)
Sa + Ka provides us with a map:
A Barrier near which is located a tomb and a tavern.
A Fortress which shares access to the tavern.
Sound familiar? The barrier isnt part of the fortress yet they are close. If the Barrier were in fact the Great Wall in China then we are looking at a district near the Great Wall of China...in proximity to it are a Tomb and a Tavern. There is a Fortress somewhere nearby south (though if it were north perhaps abandoned as a consequence) of the wall. Its entirely possible such a geographic location exists. It also shows that the movement of these words into the Japanese language occurs at a time when the great wall of china and fortress exist.
This provides you with maps to play with.
- A tomb located near a tavern (between the great wall and a fortress). What are the odds of it being the sort of place frequented by adventurers? You have to worry about soldiers from the fortress and the wall, barbarians from beyond the wall, and undead in the crypt. Sounds like an adventure.
- Meanwhile there is a cavern and a mausoleum very close together located on or near a road. The tsu phonetic adds a crypt to our cavern/mausoleum. This time we have a road that services a nearby Abbey. The Abbey is related to a monastary and two archives. If we add a ro phonetic there is a castle (in the shi phonetic).
Lots to play with... :-)