Anchor: A visit to the dam brings home the immense technological feat and allows you to gaze out over Lake Nasser, created by the blocking of the river, which is now over 500 km (310 miles) in length, spanning the border with Sudan.
Entailed: Visiting the dam will enable you to look at Lake Nasser. 
Contradiction: Lake Nasser was created naturally by the river.
Contradiction: Going to the dam will not provide you with a view of Lake Nasser. 
Contradiction: The last fifty years at this outpost have introduced a much-needed revolution in fishing and fishing techniques.
Contradiction: The man is outdoors.
Contradiction: Three girls cross a river.