Anchor: USEFUL LIFE - The normal operating life in terms of utility to the owner.
Entailed: Useful life is how long something will last in terms of utility.
Contradiction: How long before something breaks is its useful life.
Contradiction: There is not enough of it.
Contradiction: Does it border the south or east side?
Contradiction: Football team posing for a picture.
Contradiction: I decided the risk was necessary, and began.