Anchor: It is worthwhile to consider the expected future state of the supply of boilermakers.
Entailed: Considering the expected future state of the boilermakers supplies is a worthwhile endeavor. 
Contradiction: It is not worthwhile to consider the future state of the supply of boilermakers.
Contradiction: A man sitting on the street.
Contradiction: Two men are working on a truck.
Contradiction: Something is jumping off a bus into a pit of lava
Contradiction: Women hold a bag.