Complex sentence: However, in contrast the counties of Northamptonshire, Oxfordshire, Suffolk and Cambridgeshire are relative rich in early settlements and have revealed a tendency for early Anglo-Saxon settlements to be on the light soils that are associated with river terraces.
Split into simpler sentences: However, in contrast the counties of Northamptonshire, Oxfordshire, Suffolk and Cambridgeshire are relative rich in early settlements. These have revealed a tendency for early Anglo-Saxon settlements to be on the light soils associated with river terraces.