The keyword phrase "patriots day cast jessica kensky" functions collectively as a noun phrase. Although it consists of multiple individual nouns ("Patriots Day," "cast," "Jessica Kensky"), it operates as a single grammatical unit to name a specific and singular concept or topic. The core noun is "cast," which is modified by the proper nouns "Patriots Day" and "Jessica Kensky" to create a highly specific identifier.
Grammatically, the components within the phrase have distinct roles. "Patriots Day" acts as a noun adjunct, which is a noun used as an adjective to modify another nounin this case, "cast." This specifies which film's cast is the subject. "Jessica Kensky" further refines the topic, narrowing the focus from the entire cast to a particular individual's connection to it. This structure is typical of search queries and keywords, where articles and prepositions (e.g., "the," "of") are omitted for conciseness. The implied, fully-formed topic is "The connection of Jessica Kensky to the cast of the film Patriots Day." The entire phrase serves the function of a subject or object in a sentence.
Identifying the term as a noun phrase is crucial because it establishes the article's main point as a specific subject to be explored. It dictates that the article's content should focus on defining and explaining this subject: who Jessica Kensky is in the context of the Boston Marathon bombing, her relationship to the film "Patriots Day," and her portrayal by or interaction with the cast. The part of speech determines that the article's purpose is to provide information about this specific topic, rather than to describe an action (verb) or a quality (adjective).
