Anchor: But if you look at the date at the top of the letter you will notice that 'July 17th' is quite different in this respect. 
Entailed: The date was different in this regard.
Contradiction: The date did not make a difference.
Contradiction: Some people in hard hats are playing ping-pong.
Contradiction: The dogs are playing.
Contradiction: A little boy is being beaten up by a group of girls.
Contradiction: The best case of the agency is when everyone is behaved and is happy.