Anchor: An older couple on horses while smiling and a man standing nearby.
Entailed: An older couple are on horses.
Contradiction: The couple are very young.
Contradiction: A man with a child.
Contradiction: Polynesian settlers planned ahead by bringing animals and crops that would feed them.
Contradiction: The land is not easily defended and not bordered by water.  
Contradiction: A man is standing next to the woman with purple hair.