Anchor: A straight spine is something Evita did have that Madonna and most others now either lack or choose not to show off.
Entailed: Madonna lacks, or refuses to show, a straight spine. 
Contradiction: It cannot be said that Evita has ever had a straight spine, unlike Madonna. 
Contradiction: Two men wearing yellow vests are standing in my shower.
Contradiction: Multiple people are observing the skateboarder.
Contradiction: Almost 10000 GWe of scrubber capacity. have been built on power plants.
Contradiction: The weather is very hot.