The Arab town was erected atop this sandy layer and many treasures are still lost below the surface of the modern streets.
The Arab town was erected atop this very sandy layer and many treasures are still lost below the surface of the modern city streets.
mnli hypothesis: The Arab town was erected atop this very sandy layer and many treasures are still lost below the surface of the modern city streets. premise: The Arab town was erected atop this sandy layer and many treasures are still lost below the surface of the modern streets.