同盟 どうめい休校 きゅうこうじゃなかったです
dōmeikyūkōjanakattadesu

Noun
Desu Copula

The polite, past negative form of 同盟休校

1. Wasn't allied/friendly school.; Wasn't a break from the alliance/friendship (in school).

Past/Perfective
Negative
Polite
Casual Register