The keyword term "patriots day celebration lexington ma" functions grammatically as a noun phrase. Its core or head noun is "celebration," which identifies the primary subject as an event. The other words within the phrase act as modifiers to provide specific details about this event.
A detailed analysis of the phrase shows each component's role. "Patriots Day" is a proper noun used as a noun adjunct, specifying the type of celebration. The word "celebration" is the simple noun being described. The proper nouns "Lexington" and "MA" (an abbreviation for Massachusetts) form a locational modifier, indicating the geographic place of the event. Combined, these elements form a single conceptual unit that names a highly specific occasion.
The practical implication of identifying this term as a noun phrase is that the article's main point is an entitya specific eventrather than an action (verb) or a quality (adjective). Therefore, the article's content should focus on describing, explaining, and providing information about this event. The subject is the celebration itself, and the article should elaborate on its characteristics, history, activities, and significance.