Anchor: A guard stands watch at a monument as tourists look on.
Entailed: A guard is watching a monument.
Contradiction: A guard is asleep.
Contradiction: People are about to ride their bikes through the sand dunes.
Contradiction: Government lawyers are not obliged to protect officials from the law.
Contradiction: Organizations never compete with each other salary wise. 
Contradiction: A military man is practicing some of the things he's been taught to do.