Anchor: Beach bars and most watersports schools rent out sailboats.
Entailed: Sailboats can be rented out from most beach bars.
Contradiction: Sailboats must be purchased from the beach bars.
Contradiction: I can't believe how kind and generous you are!
Contradiction: There are people jumping.
Contradiction: The people can't walk.
Contradiction: i think it would be beneficial to make it required