The keyword term "patriots day parade lexington ma" functions grammatically as a proper noun phrase. As a single cohesive unit, it names a specific, unique event, distinguishing it from all other parades. The core or "head" of this phrase is the common noun "parade," which is modified by the surrounding proper nouns.
A detailed grammatical analysis breaks the phrase into its components. The simple noun "parade" is the central element. The terms "Patriots Day," "Lexington," and "MA" are all proper nouns that serve as adjectival modifiers. "Patriots Day" specifies the occasion, while "Lexington" and "MA" provide the precise geographic location. This sequence of modifiers progressively narrows the semantic scope from a generic event to a singular, identifiable one, which is the primary function of a proper noun.
Understanding this classification is critical for the article's focus and style. Treating the term as a proper noun phrase establishes the main subject as a specific entity. This informs editorial decisions, such as consistent capitalization (e.g., Patriots' Day Parade in Lexington, MA), and ensures the article's content is precisely targeted to describing this particular event, rather than the general concepts of parades, the holiday, or the location in isolation.
