Anchor: Women who never really need bras can ignore them or wear them at will.
Entailed: Women who don't need bras can ignore or wear them. 
Contradiction: Every woman has to wear a bra.
Contradiction: A man is reading a book on a yellow chair.
Contradiction: Shandurai has a vacuum cleaner.
Contradiction: The rubber bullets bounced off the wall.
Contradiction: You can easily ascend to the top where there is an impressive vista.