Complex sentence: The Dolphin Centre, which provides a wide range of sporting facilities, was opened by Roger Bannister in 1982, and received a £5 m refurbishment in 2006 and was later given a new official opening by Redcar athlete Tanni Grey-Thompson.
Split into simpler sentences: The Dolphin Centre, which provides a wide range of sporting facilities, was opened by Roger Bannister in 1982. It received a £5m refurbishment in 2006 and was later officially opened by Redcar athlete Tanni Grey-Thompson.