Anchor: uh so fortunately i don't know what the cholesterol level is but at least it hasn't clogged up yet
Entailed: I am not knowledgeable about cholesterol level, but nothing is clogged up yet.
Contradiction: I was told that my cholesterol is high, and my arteries are clogged up.
Contradiction: If you do a 360 you will always find managed results. 
Contradiction: Reliability and performance can be improved through corrosion resistant materials.
Contradiction: A dog is taking a shower.
Contradiction: Two people are sleeping in a bed.