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: "who came up with the idea of cell phones?" whose answer is BellSouth.
Each document should contain about 30 words, and these documents should contain useful information.

Query: who invented the idea for cell phones
Useful Output:

Doc 1:  ideas, suggestions and questions for Dr. Binocs at this Email Id: peekabookidzfeedback@gmail.com For more fun learning videos SUBSCRIBE to
Doc 2: On December 23, 1900, Reginald Fessenden accomplished the feat of developing a cell phone. The first wireless phone call was made by him.
Doc 3: On April 3, 1973, Martin Cooper, a Motorola researcher and executive, made the first mobile telephone call from handheld subscriber equipment,
Doc 4: The first cell phone was invented by “Martin Cooper”. he was Engineer in wireless telecommunication. He invented first cell phone in 1973, When
Doc 5: Martin Cooper, the engineer from Motorola, developed the first hand-held phone that could connect over Bell's AMPS. Motorola launched the