Anchor: But if the administration isn't buying, its allies are.
Entailed: Allies of the administration are buying even if they aren't. 
Contradiction: The administration is buying but its allies have no interest. 
Contradiction: The dog crawled on the floor, trying to scratch its itchy belly.
Contradiction: There are more than one interpretations of the disparity. 
Contradiction: The dog is swimming around and drinking some water.
Contradiction: Any paragraphs that were taken out are still shown in the table of contents.