Text: i can remember uh back in the early sixties when i first started flying a light plane it was quite common for me to take off from uh local airport here and see the uh Appalachian mountains and the Chesapeake Bay at the same time
Entailment: I started flying in the early 1960s.
Contradiction: It is impossible to see the Appalachian Mountains and the Chesapeake Bay at the same time.