Complex sentence: North of the current King George's Fields is an area of public open space called Barnet Playing Fields, an area of 72 acres laid out in 1926, and it is unclear whether it was ever part of King George's Fields.
Split into simpler sentences: North of the current King George's Fields is an area of public open space called Barnet Playing Fields, an area of 72 acres laid out in 1926. It is unclear whether this was ever part of King George's Fields.