Anchor: When the Japanese decide to do something, they seem to take a  total-immersion  route, buying the latest outfits and equipment so that they look like seasoned professionals before they take a single lesson.
Entailed: Taking a total-immersion route, the Japanese buy all outfits and equipment before they start a lesson.
Contradiction: The Japanese tend to start lessons unprepared.
Contradiction: Postal Service profitability is only dependent on some mail types.
Contradiction: teenagers are working on a paper
Contradiction: A woman in blue handles a fishing net on a boat.
Contradiction: Melatonin is naturally produced by the pineal gland.