Anchor: Crowded arena with lots of people wearing yellow, carrying red flags.
Entailed: People wearing yellow and carrying flags in an arena
Contradiction: People wearing black and carrying flags in an arena
Contradiction: Nobody has a shirt.
Contradiction: Little mechanization existed in the postal service before 1970, but large amounts were added in the 70s.
Contradiction: a dog in the forest
Contradiction: Gottlieb was on vacation.