Anchor: If anyone had chanced to look this morning before his return, and seen it there, it would have been a valuable point in his favour. 
Entailed: If anyone saw it was there, it would help him out.
Contradiction: It would not be good for him if someone saw it before he got back.
Contradiction: The men are performing inside of a building.
Contradiction: Men are playing a game outside.
Contradiction: I don't like reading anything.
Contradiction: It's possible to get them a sent to higher security prison.