You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "What campaign was launched by "Bomber" Harris?" whose answer is Battle of Berlin.
Each document should contain about 30 words, and these documents should contain useful information.

Query: campaign launched by Bomber Harris during World War II
Useful Output:

Doc 1: Harris pressed for raids on a much larger scale and launched the first RAF “thousand bomber raid” against Cologne in May 1942, his successes
Doc 2: During the WWII Allied strategic bombing campaign, did conditions of poor visibility impact only the USAAF precision bombing or also the RAF
Doc 3: Berlin and Later Campaigns​​ Over the next four months, Harris launched sixteen mass raids on the German capital. Though large areas of the city
Doc 4: Arthur Harris' name is indelibly associated with the bomber war. He led Bomber Command from February 1942 until the end of the war against Germany.
Doc 5: His raids were some of the most destructive of the war—when it came to German civilian casualties. Starting with the 1000-bomber raid against