The main point of the keyword term "patriot day video for middle school students" is the word "video," which functions as a noun. While the entire phrase operates as a noun phrase, "video" is the grammatical head or core subject that the other words describe.
In a grammatical analysis, "video" is the head noun. The term "patriot day" is a proper noun acting as an attributive noun (or adjective) that specifies the topic of the video. The prepositional phrase "for middle school students" functions as an adjectival phrase, further modifying the noun by defining its intended audience. The entire construction is built around the central concept of a "video."
Identifying "video" as the main noun is crucial because it establishes that the article's focus is on a specific media format. The modifiers "patriot day" and "for middle school students" provide the necessary context for the content (subject) and its delivery (audience), but the core element being discussed is the video itself.
