The keyword phrase "patriots day parade boston" functions grammatically as a noun phrase. The core or head of this phrase is the noun "parade."
In this construction, "Patriots' Day" (a compound proper noun) and "Boston" (a proper noun) act as noun adjuncts. Noun adjuncts are nouns that modify another noun, functioning similarly to adjectives. "Patriots' Day" specifies the occasion of the parade, while "Boston" specifies its location. Together, they form a complex modifier that narrows the meaning of "parade" to a very specific event.
Understanding this grammatical role is critical because it establishes the article's subject as a specific entitya thing or an event. The main point is not an action (verb) or a quality (adjective), but the parade itself. This directs the article to focus on describing this event, its characteristics, history, and significance, treating it as the central topic of discussion.
