Anchor: Two men using gardening tools on the ground.
Entailed: two men are gardeners
Contradiction: two men are playing in the dirt
Contradiction: Professor Aleinikoff has never gone to college and was taught everything he knows by a hobo under a bridge. 
Contradiction: The only link with the outside world on some of the smaller islands are ferries.
Contradiction: Neither Stuart Crystal nor Caithness Glass produce good looking patterns.
Contradiction: This has been a very long discussion to make a point