Complex sentence: Thomas Robert "Tom" Daley (born 21 May 1994) is a British diver, and television personality, who specialises in the 10 metre platform event and was the 2009 FINA World Champion in the individual event at the age of 15.
Split into simpler sentences: Thomas Robert "Tom" Daley (born 21 May 1994) is a British diver and television personality. Daley specialises in the 10 metre platform event and was the 2009 FINA World Champion in the individual event at the age of 15.