The entire keyword phrase functions as a compound noun phrase. It operates as a single grammatical unit that names a specific topic, event, or concept, making it the subject of the article.
This noun phrase is composed of three distinct elements that work in conjunction. The core is the proper noun "Patriot Day," which names the holiday. This is post-modified by the numeral "2025," functioning adjectivally to specify the year. Finally, the proper noun "Canada" acts as a noun adjunct, a noun used as an adjective to specify the geographical or national context. The combination of these parts narrows the focus from a general holiday to a highly specific instance.
Designating the phrase as a noun phrase is the critical first step because it establishes the article's central subject matter. All content within the article will serve to define, describe, or analyze this specific subject. The article's main point is not an action (verb) or a quality (adjective), but a thingthe observance of this particular day in a specific country and year. This grammatical function dictates that the article's purpose is to provide information about this topic.
