The keyword term "banners for memorial day" is a noun phrase. The head of this phrase, which serves as the main grammatical subject, is the plural noun "banners."
The structure of the phrase consists of the head noun ("banners") followed by a prepositional phrase ("for memorial day"). This prepositional phrase functions as a post-nominal modifier, specifically an adjectival phrase, which describes or qualifies the head noun. It specifies the purpose, theme, or occasion associated with the banners, distinguishing them from banners for other events.
Because the core component of the keyword is a noun, the main point of the article should be the object itself. The content should focus on describing, defining, or showcasing the physical or digital banners. The modifier "for memorial day" provides the essential context, guiding the discussion toward the specific designs, symbolism, and appropriate uses of such banners in the context of the holiday.