だい日本 にっぽん ゆたか秋津洲 あきつしまではありません
dainippon'yutakākitsushimadewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 大日本豊秋津洲

1. Is not Great Japan, abundant autumn land.; Is not the land of Great Japan, rich in autumn harvests.

Negative
Polite
Formal Register