無人 むじん宇宙 うちゅう補給 ほきゅう でした
mujin'uchūhokyūkideshita

Noun
Desu Copula

The polite past form of 無人宇宙補給機

1. It was an unmanned spacecraft.; It was an HTV (H-II Transfer Vehicle).

Past/Perfective
Polite