21. Appositive Noun and Adjective Phrases

Grammar books have paid little attention to the appositive phrase as a structure derived from a full sentence, probably because it retains only a single element of a simple sentence. For this reason, too, a speaker or writer might not always think of using an appositive phrase as reduction of a full sentence. Since it is important that he should have at his command every structure that provides a grammatical shape for his ideas, he should not overlook this additional means of including a subject-predicate idea within a sentence.