Complex sentence: Since 2003 the Stonehenge Riverside Project led by Mike Parker Pearson has carried out annual excavations at Durrington Walls, identifying the Neolithic village and avenue to the river.
Split into simpler sentences: Since 2003 the Stonehenge Riverside Project, led by Mike Parker Pearson, has carried out annual excavations at Durrington Walls. It identified the Neolithic village and avenue to the river.