The keyword term functions as a compound noun phrase. It is a collection of nouns and a proper name that, when combined, act as a single unit to identify a specific, singular topic. The primary part of speech is a noun, as the entire phrase is used to name a concept or subject for discussion.
A grammatical analysis reveals a hierarchy of specification within the phrase. The proper noun "Patriots Day" acts as an adjective modifying the common noun "film," creating the more specific noun phrase "Patriots Day film." The proper noun "Dun Meng" is then appended to this unit, further narrowing the topic to a specific person's role or portrayal within that particular film. The phrase lacks a verb and does not describe an action or modify another element in a sentence; its sole function is to serve as a label for a subject.
Recognizing the term as a noun phrase is a critical step for article development. It establishes the central subject matter that the article must define and explore. The core task becomes explaining the relationship between the entities named: who Dun Meng is and what his connection is to the film "Patriots Day." This understanding dictates that the article's structure should be informational and centered on defining this subject, rather than argumentative or narrative, and ensures that headings, topic sentences, and metadata are all aligned with this core concept.
