The keyword term "Patriots Day based on a true story" functions grammatically as a complex noun phrase. The head of this phrase, and therefore its main point, is the proper noun "Patriots Day."
In this construction, "Patriots Day" is the central subject, specifically referring to the title of the film. The subsequent words, "based on a true story," form a participial phrase that acts as a postpositive adjective, meaning it modifies the noun that precedes it. This adjectival phrase provides essential descriptive information, qualifying the nature of the film by specifying its connection to factual events.
Understanding that the core of the keyword is a noun ("Patriots Day") is critical. It establishes the film itself as the primary topic of discussion. The adjectival modifier ("based on a true story") dictates the specific analytical lens: the article should focus on the film as a creative work while examining its relationship to the real-world events it portrays. The grammatical structure inherently calls for an analysis of the film's accuracy, narrative choices, and dramatization of its source material.
