We will start by looking more closely at nouns themselves. In the previous chapter, we discovered that there are different types of verbs, and that those verb types influenced the structure of the verb phrase. With nouns as well, there are different subtypes, and those types play a role in the structure of the noun phrase.
Our basic procedure will be to look for elements that are grammatically distinct in English. In other words, we must find structural reasons to distinguish one item from another. For example, we can justify distinguishing verbs from nouns based on the relationships they enter into: