Complex sentence: Alexandros Papadimitriou (born 18 June 1973) is a Greek hammer thrower, whose personal best throw is 80.45 metres, achieved in July 2000 in Athens.
Split into simpler sentences: Alexandros Papadimitriou (born June 18,1973) is a Greek hammer thrower. His personal best throw is 80.45 metres, achieved in July 2000 in Athens.