The keyword phrase "patriots day cast jessica" functions grammatically as a proper noun phrase. Within this structure, "Patriots Day" (a proper noun) and "cast" (a common noun) act as adjectival modifiers for the final proper noun, "Jessica." The entire phrase operates as a single unit to name a specific, unique entity: the individual named Jessica associated with the cast of the film Patriots Day.
The query specifically refers to the actress who portrayed the character of Jessica Kensky in the 2016 film Patriots Day. Jessica Kensky is a real-life survivor of the Boston Marathon bombing, and her story, along with that of her husband Patrick Downes, is a significant component of the movie's narrative. The actress who plays this role is Rachel Brosnahan. Therefore, the search term is a direct inquiry to identify the performer linked to that specific character name within the film's ensemble.
Understanding the term as a proper noun phrase is crucial because it pinpoints the user's intent: to retrieve specific information about a person, not a general concept. The practical application of this analysis is the direct identification of Rachel Brosnahan as the actress who portrayed Jessica Kensky. This resolves the ambiguity of the name "Jessica" by tying it to the specific context of the "Patriots Day cast."