The keyword phrase "Lexington Massachusetts Patriots Day" functions as a proper noun phrase. Its primary grammatical role is that of a noun, referring to a specific, unique entityin this case, a particular civic holiday and its associated commemorative events in a specific location.
This phrase is constructed from several components. The core is the compound proper noun "Patriots Day," which is the name of the holiday. The preceding proper nouns, "Lexington" and "Massachusetts," act as adjectival modifiers. They specify the geographic context, distinguishing the events held in Lexington, Massachusetts, from other observances. Grammatically, "Lexington" modifies "Massachusetts," and the combined "Lexington Massachusetts" modifies "Patriots Day." The entire string operates as a single conceptual unit.
Recognizing the phrase as a proper noun is critical for article construction. It dictates that the phrase should be treated as a singular subject or object within a sentence, ensuring grammatical integrity. This classification guides syntax, capitalization, and referencing, ensuring the article consistently and accurately refers to the specific historical commemoration as a named event.
