要(よう)求(きゅう) youkyuuされた saretaもの monoは wa全(すべ)て() subete送(おく)り()ま()し()た() okurimashita。 I sent everything that was requested. Literal Request-was [attributive-の] things [object-を] all sent. 要求されたもの is a relative clause: 要求された ('was requested,' passive past) modifies もの ('things'). This 'passive relative clause' pattern is common — 'the X that was Yed.' workpassive voice (~れる/~られる)relative clause modifying a noun
要(よう)求(きゅう) youkyuuされた saretaもの monoは wa全(すべ)て() subete送(おく)り()ま()し()た() okurimashita。 I sent everything that was requested. Literal Request-was [attributive-の] things [object-を] all sent. 要求されたもの is a relative clause: 要求された ('was requested,' passive past) modifies もの ('things'). This 'passive relative clause' pattern is common — 'the X that was Yed.' workpassive voice (~れる/~られる)relative clause modifying a noun