Anchor: After a while, he stopped crawling and sitting up.
Entailed: He didn't continue crawling for a long time.
Contradiction: He kept on sitting up.
Contradiction: I don't think that it would help you bridge the gaps in your knowledge.
Contradiction: The pharmacist's assistant was new on this job, but was well qualified for it. 
Contradiction: The current team sucks, the quarterback is the only good player.
Contradiction: The stairs go up to the Temple of Kali.