Anchor: People enjoy these  Some exhibitions where visitors tote around the latest electronic gadgetry are beginning to resemble cellular-phone-users' conventions.
Entailed: Some exhibitions allow visitors to enter with their electronics.
Contradiction: All exhibitions ask visitors to leave their electronics at the entrance.
Contradiction: A man never wear red shirt.
Contradiction: River rafter in a rough patch of white water.
Contradiction: The man throws his saxophone.
Contradiction: A person dancing.