Anchor: This research is crucial as the field progresses from evaluating efficacy in research settings to examining effectiveness in the current, complex health care delivery system.
Entailed: This research is crucial as the field progresses from evaluating efficacy 
Contradiction: This research isn't crucial as the field progresses from evaluating efficacy 
Contradiction: Some children are playing baseball.
Contradiction: His behavior towards us was very arrogant.
Contradiction: If you want to see the collection, you still have to search through the library.
Contradiction: There are girls playing.