Text: Priene, once one of the most active ports in the Ionian Federation, now stands about 5 km (3 miles) inland, due to the silting up of the River Maeander.
Entailment: Silting up of the Maeander River has caused Priene to move about 5km (3mi) inland.
Contradiction: Priene currently sits on the shores of the River Maeander.