The keyword term "patriots day movie characters" functions grammatically as a noun phrase. The core or head of this phrase is the noun "characters," which represents the main subject.
In this construction, the words "patriots day movie" act as a compound modifier, specifically a series of noun adjuncts, that specify and describe the head noun "characters." The proper noun "Patriots Day" identifies the specific film, and "movie" further clarifies the medium. Together, they form a descriptive unit that answers the question "Which characters?" The phrase does not contain a verb and therefore does not express an action or state of being; instead, it names a specific group of entities.
Understanding this term as a noun phrase is crucial because it establishes the article's primary subject. The content should focus on identifying, describing, or analyzing the specific individuals portrayed in the film "Patriots Day." The grammatical function dictates that the article will treat these characters as the central topic, allowing for discussions of their roles, development, and historical counterparts.