The main point of the keyword phrase "patriots day woman on roof" is the word "woman," which functions as a noun. This noun serves as the head or core of the entire noun phrase, identifying the primary subject of the topic.
In a grammatical analysis, "woman" is the central element being described. The other components of the phrase act as modifiers. "Patriots day" is a proper noun functioning as a noun adjunct (or adjectival noun), specifying the temporal context or event associated with the woman. The prepositional phrase "on roof" acts as an adjectival phrase, modifying "woman" by describing her physical location. Both "patriots day" and "on roof" provide descriptive details, but "woman" is the grammatical subject.
Therefore, any content developed from this keyword must focus on the person identified as the "woman." The determination that the main point is a noun is crucial because it establishes the article's subject as a specific individual, with the event and location serving as secondary, contextual details.