Complex sentence: Sir Martin Sorrell (born 14 February, 1945 in London) is a British businessman, currently the chief executive officer of WPP Group and has served in that role since he started the company in 1986.
Split into simpler sentences: Sir Martin Sorrell (born 14 February, 1945 in London) is a British businessman, currently the chief executive officer of WPP Group. He has served in that role since he started the company in 1986.