Anchor: In use since Roman times, today the salt pans are the source of 18,000 metric tons (20,000 tons) of salt a year.
Entailed: Salt pans, the source of 18,000 metric tons of salt, have been in use since Roman times. 
Contradiction: Salt pans have only been in use since Medieval times.
Contradiction: In the kafeneion Greeks discussed about the land of Italy.
Contradiction: Two men are holding instruments.
Contradiction: The pool is empty.
Contradiction: A woman is indoors.