Anchor: MOVING AVERAGE -An inventory costing method used in conjunction with a perpetual inventory system.
Entailed: The moving average is an inventory costing method.
Contradiction: The moving average is not used as an inventory costing method.
Contradiction: The mailer is required to carry a penguin on its back at all times. 
Contradiction: Most of the streets are easily navigable and have signs.
Contradiction: The girl is swimming underwater.
Contradiction: I know my duty.