Complex sentence: Anthony Bryan "Tony" Hayward (born 21 May 1957) is the former Chief Executive of oil and energy company BP, having taken over from John Browne, Baron Browne of Madingley on 1 May 2007.
Split into simpler sentences: Anthony Bryan "Tony" Hayward (born 21 May 1957) is the former Chief Executive of oil and energy company BP. He replaced John Browne, Baron Browne of Madingley on 1 May 2007.