Anchor: Below, all signs of roads disappear, and it is clear how difficult road-building is in this tortuous terrain.
Entailed: It is hard to build roads in this terrain.
Contradiction: It is easy to build roads there.
Contradiction: The man is awake.
Contradiction: The routes in question would end up in increased costs for the consumers.
Contradiction: A crowd gathers in an auditorium.
Contradiction: Daniel tried to put the flame out.