The keyword term functions grammatically as a noun phrase. Its purpose is to name a specific, singular concept: a particular commemoration observed on a set date within a distinct geographical area. The core or head word of the phrase is the noun "holiday," which is being described and specified by the other components.
This compound noun phrase is constructed with multiple modifiers to achieve its specificity. "September 11" is a proper noun (a date) that functions as an adjective, defining which holiday is being referenced. Likewise, "Ilocos Norte" is a proper noun (a location) that acts as a locative adjunct, specifying where this holiday is observed. Together, these elements modify the head noun "holiday" to distinguish it from all other holidays.
Understanding this grammatical role is critical for developing the article. As a noun phrase, the term will serve as the subject or object in sentences, establishing the central topic. This allows for the construction of clear, declarative statements, such as "[The September 11 holiday in Ilocos Norte] is a provincial ordinance" (subject) or "The article will analyze [the September 11 holiday in Ilocos Norte]" (object). This grammatical foundation ensures the article remains focused on a clearly defined entity.
