Complex sentence: Hal merges with the Entity and transforms himself and the Black Lantern heroes into a White Lantern Corps, who restore Black Hand to life; this causes Black Hand to regurgitate a White Ring which revives the Anti-Monitor, trapped in the Black Lantern Power Battery.
Split into simpler sentences: Hal merges with the Entity and transforms himself and the Black Lantern heroes into a White Lantern Corps, who restore Black Hand to life. This causes Black Hand to regurgitate a White Ring which revives the Anti-Monitor trapped in the Black Lantern Power Battery.