The keyword phrase "patriot day bulletin board" functions as a noun. More specifically, it is a compound noun or noun phrase. The core or head noun is "board," which is modified by the preceding words.
In this grammatical construction, "bulletin" acts as a noun adjunct, specifying the type of board. The term "Patriot Day" is a proper noun phrase that functions adjectivally to describe the theme or subject of the bulletin board. The entire phrase refers to a single, specific object: a display board created in observance of Patriot Day.
Recognizing the keyword as a noun is the crucial first step because it establishes the article's subject as a tangible thing. This dictates that the article's focus should be on the physical or conceptual attributes of the board itselfsuch as its design, content, purpose, materials, or examplesrather than on the abstract concept of patriotism or the historical event of Patriot Day alone.
