高速 こうそく通信 つうしん もうじゃないです
kōsokutsūshimmōja naidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 高速通信網

1. It's not a high-speed communication network.; It isn't a high-speed network.

Negative
Polite
Casual Register
Computing