Anchor: An average looking man is playing the guitar.
Entailed: The man knows how to play guitar.
Contradiction: The man is playing the drums.
Contradiction: One summer I worked in construction job.
Contradiction: Though there is evidence that the tree is one of the oldest in Europe, it is believed that it is not old enough to have been from Hippocrates' era.
Contradiction: A man and woman are sleeping.
Contradiction: An older gentleman walks on a sidewalk