Text: On the west bank of the river set in a desert landscape is the seventh-century Coptic monastery of St. Simeon now sadly in ruins, and the Mausoleum of the Aga Khan (1877 1957), spiritual leader of the Ismaili Muslim sect.
Entailment: The St.Simeon monastery dates back to the seventh century.
Contradiction: The seventh-century Coptic monastery of St. Simeon is in pristine condition to this day.