Anchor: Performing some bike maintenance, the lady lubricates a frame before assembly is completed.
Entailed: The lady is working on a bike.
Contradiction: The woman is sewing a shirt.
Contradiction: The bike is perfect with no need to maintain.
Contradiction: The lady is laying on the couch watching Ellen.
Contradiction: The lady is putting air in the bike's tires.
Contradiction: woman driving a car