Anchor: Boats are available for rent, and water-skiing and powerboat racing are very popular pastimes.
Entailed: A lot of people enjoy powerboat racing.
Contradiction: One can buy boats, but not rent them.
Contradiction: Kids are being lazy instead of practicing for an event that they will perform at school.
Contradiction: The man uses a computer.
Contradiction: Several people are sitting inside.
Contradiction: The vehicle has many people