The keyword term functions as a noun phrase. The core or head of this phrase is the noun "events," which represents the central subject. The words preceding it, "Patriots Day" and "Massachusetts," act as modifiers that specify the context of the noun.
Grammatically, "Patriots Day" and "Massachusetts" are proper nouns serving as adjectival modifiers. "Patriots Day" specifies the occasion or theme of the events, while "Massachusetts" defines the geographical location. This hierarchical modification narrows the topic from a general concept (events) to a highly specific and searchable category: occurrences related to a particular holiday within a specific state.
For an article, this grammatical structure dictates that the main point must be the enumeration, description, and detailing of the activities themselves. The content should not focus primarily on the history of the holiday or the geography of the state, but rather use those elements as the framework to present the specific happenings (e.g., parades, reenactments, races) that constitute the core subject.
