The term "september 11th pentagon memorial" functions grammatically as a proper noun phrase. A noun phrase is a group of words that collectively serves as a noun, in this case, naming a specific and unique entity. The entire phrase acts as a single unit to identify a particular subject.
A detailed grammatical breakdown reveals "memorial" as the head noun, which is the core word that the other elements modify. The preceding components, "september 11th" and "pentagon," function as adjectival modifiers. "Pentagon," itself a proper noun, acts as a noun adjunct to specify the location. The date "september 11th" serves as an adjectival phrase to identify the commemorative purpose. These modifiers work in sequence to narrow the general concept of a "memorial" to a singular, specific landmark.
This classification is fundamentally important because it establishes the article's subject as a tangible thinga specific placerather than an abstract concept, an event, or an action. Understanding the term as a noun phrase dictates that the focus of the writing will be descriptive and analytical, centering on the physical and symbolic attributes of this singular entity. It provides a clear, concrete subject for all subsequent statements and analysis.
