Anchor: Any changes must be approved by an authorizing official before being entered into the payroll system.
Entailed: Changes have to be approved by an authorized official before they can be entered into the payroll system.
Contradiction: Changes to the payroll system do not have to be authorized.
Contradiction: A boy sits on a bench putting on his boots.
Contradiction: A lot of them are made in Pakistan, India and Afghanistan, but some are leftover from what we sent over there.
Contradiction: The man was in his early 20s.
Contradiction: They were not very effective.