Anchor: In a moment or two he roused himself, and went on with his investigations. 
Entailed: He roused himself and investigated.
Contradiction: He stopped investigating.
Contradiction: A family sits outside and has a picnic on a tablecloth.
Contradiction: The two existing sports are golf and tennis.
Contradiction: Three people are cleaning the ground with their yellow bucket.
Contradiction: A woman is near a waterfall.