The document provides examples of adding adjective phrases to nouns and adverb phrases to verbs, then using them in sample sentences. For nouns, it gives the example of "a tall young man in a splendid costume" and lists various nouns to modify. For verbs, it gives the instruction to add adverb phrases and lists some verbs along with space to write sample sentences using the modified verbs. The purpose is to demonstrate how to expand simple words into more descriptive phrases within the context of complete sentences.