Text: To see the first and oldest pyramid you must make an hour's journey south of Cairo to Saqqara and, following this, on to the ancient capital of Lower Egypt Memphis.
Entailment: You must take an hour's journey to the south of Cairo and Saqqara, and then to the old capital of Lower Egypt in order to see the first and oldest pyramid.
Contradiction: You can't see the first pyramid anymore, because it's run down and destroyed.