Complex sentence: The original portion of the Piney Grove house was constructed as a log corn crib on the Southall plantation before 1790 and survives as a rare and well-preserved example of early log architecture in Tidewater Virginia.
Split into simpler sentences: The original portion of the Piney Grove house was constructed as a log corn crib on the Southall plantation before 1790. It survives as a rare and well-preserved example of early log architecture in Tidewater Virginia.