The main point of the keyword phrase "patriots day banks open" is the word "open," which functions as a predicate adjective. In this context, it describes the state or condition of the subject, "banks." The phrase is a condensed form of the question, "[Are] banks open [on] Patriots Day?," where the linking verb "are" is implied, a common characteristic of search queries and headlines.
Grammatically, "Patriots Day" acts as an adverbial noun phrase, specifying the time frame for the inquiry. "Banks" is the noun and the subject being examined. The crucial element that determines the article's focus is "open." As a predicate adjective, it modifies the subject ("banks") and requires a resolutiona confirmation or denial of this state. The analysis distinguishes this from a verbal use (e.g., "banks open at 9 AM"), as the query is concerned with the status of being accessible, not the action of opening.
Understanding "open" as the adjectival main point is critical because it frames the article's core purpose: to answer a "yes or no" question about the operational status of financial institutions on a specific holiday. The article must therefore focus on providing a definitive answer to whether banks exist in the state of being "open" or "closed" on that day, supported by facts about federal and state banking regulations concerning the holiday.