The keyword term "patriot day poem" is a noun phrase. The main point and the head of this phrase is the word "poem," which is a noun.
In this grammatical construction, the words "patriot" and "day" function as noun adjuncts (or attributive nouns), which means they are nouns acting as adjectives to modify the main noun. "Patriot" modifies "day" to form the compound concept "Patriot Day." Subsequently, the entire unit "Patriot Day" modifies "poem," specifying its subject matter or occasion. The structure defines a specific type of literary work: a poem that is about or for Patriot Day.
Identifying "poem" as the core noun is crucial because it establishes the article's primary subject as a tangible creative work. The focus will be on the content, themes, and structure of this specific genre of poetry, rather than on an action (verb) or a quality (adjective).
