Complex sentence: Motorpoint Arena Cardiff (formerly known as Cardiff International Arena) is an indoor exhibition centre and events arena located in Cardiff, the capital of Wales, and was opened on 10 September 1993, by Shirley Bassey, in front of 5,500 fans.
Split into simpler sentences: Motorpoint Arena Cardiff (formerly known as Cardiff International Arena) is an indoor exhibition centre and events arena located in Cardiff, the capital of Wales, and was opened in September 1993 by singer Shirley Bassey. The arena was opened on 10 September 1993, by Shirley Bassey, in front of 5,500 fans.