Contrastive

This thesis is an attempt to apply the theory of transformational grammar to the Japanese language. […] Comparison of the structure of Japanese and English is also our concern, whenever possible, and it is seen that the transformational theory is helpful in such contrastive studies.

Consider the first, allegedly contrastive fact, that there were some bank robbings by Sutton rather than no robbings at all by Sutton.

Vowel length is contrastive.