Complex sentence: All the teams start at 0700h on the Saturday from an area of flat land next to Anthony Stile, close to Okehampton Camp on the northern edge of Dartmoor they stand in a semicircle and set off when a cannon fires.
Split into simpler sentences: All the teams start at 0700 on the Saturday from an area of flat land next to Anthony Stile, close to Okehampton Camp on the northern edge of Dartmoor. They stand in a semicircle and set off when a cannon fires.