収容 しゅうよう しょ群島 ぐんとうじゃなかったです
shūyō shoguntōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 収容所群島

1. It wasn't a cluster of camps.; It wasn't the island camps.

Past/Perfective
Negative
Polite
Casual Register