Anchor: Under the assumption that the level of service is important, knowledge about the level achieved is important.
Entailed: Service level is as important as the knowledge used to achieve it
Contradiction: Service level is unimportant 
Contradiction: We play in the winter and I'm not going to get her prepared for it since she can't play.
Contradiction: They have seen the last two decades as being victorious.
Contradiction: A gymnast is dancing on the floor mat.
Contradiction: But I am discussing art.