The keyword term "patriots day poem" functions as a noun phrase. The core or head of this phrase is the noun "poem," which is the main subject being discussed.
In this construction, the words "Patriots Day" act as a compound attributive noun (or noun adjunct). "Patriots Day" is a proper noun identifying a specific holiday, but here it modifies the noun "poem," specifying its type or subject matter. Its grammatical function is adjectival, answering the question, "What kind of poem is it?" It is a poem about or for Patriots' Day.
Recognizing "poem" as the head noun is crucial because it establishes that the article's primary focus must be on a literary work. The content should analyze, present, or discuss a poem or poems, with "Patriots Day" serving as the specific context or theme, rather than focusing on the holiday itself.
