Anchor: In summer it's overcrowded, but that's part of the fun.
Entailed: The crowd is dense in summer, but that's not a bad thing.
Contradiction: There aren't many people around in summer time, so it's pretty boring.
Contradiction: They really weren't that big at all; I've seen bigger.
Contradiction: A person has dark hair.
Contradiction: He is diving in the sea
Contradiction: Someone was wearing a mask.