Anchor: It's now no longer needed as the Aswan High Dam in the far south of Egypt completely controls the flow, keeping the city safe.
Entailed: The flow is completely under control.
Contradiction: The Aswan High Dam does nothing in terms of keeping the city safe
Contradiction: The flow isn't under control.
Contradiction: Fieldcrest does not have any advantage over its competitors. 
Contradiction: There are many people at a gathering.
Contradiction: A man yelling at another man.