Anchor: Several workers wearing hard hats dig a hole.
Entailed: workers in hard hats dig a hole.
Contradiction: Several workers use nail guns to assemble a deck.
Contradiction: Having been warned about throwing food at the other students, the young child was forced to eat his meal while sitting in the classroom closet.
Contradiction: A man provided with microscope.
Contradiction: A man trying to pull out grass.
Contradiction: A clean street is in town.