Question: What song does Ozzy refer to in his song "Dreamer"  that was written by John Lennon, that encourages a world at peace?
Sentence (from "Dreamer (Ozzy Osbourne song)"): The Japanese and European press of the single also include a slightly different version of the song Dreamer, dubbed on the single "Dreamer (acoustic)", and a previously unreleased song titled "Black Skies".
Relevant evidence: No