The keyword term "patriots day film characters" functions as a noun phrase. The core or head word of this phrase is the plural noun "characters." The other words in the term act as modifiers that specify which characters are being referenced.
In this grammatical construction, "characters" is the subject. The words "Patriots Day" and "film" serve as noun adjuncts, which are nouns that function as adjectives to modify another noun. "Film" modifies "characters" to specify that they are from a cinematic work. "Patriots Day," a proper noun, further modifies the compound "film characters" to identify the specific movie. Together, "Patriots Day film" acts as a single adjectival unit describing "characters."
Understanding this structure is critical because it establishes that the main point of the article must be the individuals portrayed in the film. The content should focus on describing, analyzing, or listing these specific people, whether they are based on real-life figures like Sergeant Tommy Saunders and Commissioner Ed Davis or composite representations. The keyword's classification as a noun phrase dictates that the subject matter is a specific group of entities, not an action, a description, or an abstract concept.