The keyword phrase "patriots day movie filming locations" functions as a noun phrase. The core or main point of the phrase is the head noun, "locations." All preceding words"Patriots Day," "movie," and "filming"act as modifiers that specify precisely which locations are being referred to.
In this grammatical construction, "locations" is the subject. The term "filming" is a gerund or participle functioning as an adjective to describe the type of locations (i.e., places used for filming). The phrase "Patriots Day movie" is a compound modifier that further specifies the subject of the filming. This stacking of nouns and modifiers to pinpoint a specific subject is a common structure in English, where preceding nouns act as adjectives (noun adjuncts) to the final noun in the sequence.
Therefore, for an article using this keyword, the primary subject matter must be the physical places (the noun "locations"). The article's focus should be on identifying and detailing the specific geographical sites where the film "Patriots Day" was shot. The grammatical analysis confirms that the content must center on tangible settings rather than the abstract process of filming or a review of the movie itself.