Anchor: While a man's mowing lawn, a man and a woman are helping him to clean up the backyard.
Entailed: three people are doing yard work
Contradiction: three people are swimming in the pool
Contradiction: It is common in small towns.
Contradiction: The people are having a picnic together.
Contradiction: We've never done it before since the kids would hate it.
Contradiction: You shouldn't believe that you can buy a copy of my book on the black-market web store.