The keyword phrase "patriots day film box office" functions grammatically as a compound noun phrase. Within this structure, the final word, "office," acts as the head noun, which is modified by the preceding words. The entire phrase refers to a single, specific concept: the financial performance or revenue generated by the film titled "Patriots Day."
A detailed grammatical analysis breaks the phrase into its components. "Box office" is a compound noun referring to the commercial success of a film. The nouns "Patriots Day" and "film" act as noun adjuncts (or attributive nouns), where they function like adjectives to modify the subsequent noun. "Patriots Day" modifies "film" to specify which movie is being discussed. This unit, "Patriots Day film," then modifies the head noun phrase "box office." This sequential modification creates a highly specific term, narrowing the focus from the general concept of a box office to the particular box office results of a single film.
Recognizing this phrase as a noun is crucial for article construction. It allows the term to be used as a subject (e.g., "The patriots day film box office exceeded expectations."), an object (e.g., "Studios analyzed the patriots day film box office."), or the object of a preposition (e.g., "Reports on the patriots day film box office were positive."). This grammatical classification establishes the topic as a distinct entity, which is the central point of data, analysis, and discussion within the article.