Anchor: (I'd prefer to help poor old folks by contributing to charities of my choice, but never mind.)
Entailed: Poor folks can be helped by contributions to charity.
Contradiction: Poor old folk can not be helped at all. 
Contradiction: Two women are on computers.
Contradiction: Gates did not impose strict quality control standards.
Contradiction: The man is riding a speedboat through rough waters.
Contradiction: The grounds stay open until midnight when there is a full moon.