Anchor: You'll be able to hire a boat to take you out to the reef that runs all along the coast here, easily seen just a few hundred meters from the shore; snorkeling offers the opportunity to observe a wealth of fish and other sea creatures.
Entailed: There's a reef nearby where there's a lot of water life to see if you take a boat and go snorkeling.
Contradiction: Hiring a boat is expensive around here.
Contradiction: The boy is riding a bicycle.
Contradiction: He had doubts before the race.
Contradiction: A man is working in a building no children are allowed.
Contradiction: An unhappy woman is outside.