Anchor: There were history textbooks left lying around, like scattered treasure.
Entailed: The history books were scattered around like treasure. 
Contradiction: There were geometry books scattered all over the floor. 
Contradiction: A group of people are sitting in a dark room.
Contradiction: Someone is watching a group of people on the ground.
Contradiction: The notice to an agency will refuse to point this out under any circumstance.
Contradiction: Further regulation of power generators is expected in the future.