Anchor: However, discretionary spending historically has grown faster than the rate of inflation.
Entailed: In the past, discretionary spending has increased at a faster rate than inflation has. 
Contradiction: Historically speaking, inflation has always grown faster than discretionary spending. 
Contradiction: Drew recounted the horrific events of the war.
Contradiction: It's good that you know so many people.
Contradiction: Studying all day in the library.
Contradiction: A man is playing rugby.