Anchor: Life on Earth was special because it was the only life we knew.
Entailed: Life on earth is very special.
Contradiction: They knew other lives other than life on earth.
Contradiction: I always know the difference between a rope and a saddle when I see one. 
Contradiction: The dogs are on a patio.
Contradiction: There is little market for inlaid wood here.
Contradiction: There are people listening to a man speak.