Anchor: You can hire various sorts of craft for an hour, day, or week, at many beaches and hotels (but note that you will be required to produce a valid proof of qualification for a self-drive motor boat).
Entailed: You can rent a boat.
Contradiction: You have to have your own boat.
Contradiction: The man has many fish in his net.
Contradiction: Program boards show the diversity of the people they serve. 
Contradiction: This car seat's material is flimsy and cheap. 
Contradiction: A skateboarder goes down a set of railings.