開放 かいほう がた文書 ぶんしょ体系 たいけいじゃありません
kaihōga tabun shota ikeijārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 開放型文書体系

1. It is not an open document system.; It's not an open-source document system.

Negative
Polite
Terminal Form
Computing