Anchor: A man in a T-shirt and jeans is dancing in front of a man and a woman playing electric guitars.
Entailed: A man and woman are making music.
Contradiction: Three people are playing guitars.
Contradiction: The man left the boat.
Contradiction: It's pretty nice.
Contradiction: No one ever visited the house because it was too depressing. 
Contradiction: A small child and dog are outside.