The keyword phrase "patriots day en francais" is a modified noun phrase. The core component, "Patriots Day," is a proper noun, which functions as the main subject. The prepositional phrase "en franais" (meaning "in French") acts as an adjectival modifier, specifying the language context for the noun. Therefore, the grammatical focus is on the noun, "Patriots Day."
In this construction, "Patriots Day" serves as the head of the phrase, identifying the specific holiday as the central topic. The postpositive modifier "en franais" qualifies this topic, indicating that the desired content or discussion about the holiday should be in the French language. This structure is common in search queries and content tagging where a primary entity (the noun) is paired with a specifier (the adjectival or prepositional phrase) to refine the context. It is distinct from the official French name for a similar holiday (e.g., Journe nationale des patriotes in Quebec), and instead represents a request for information about the American holiday presented in French.
From a practical standpoint, this grammatical analysis dictates the article's focus. The primary subject matter is the proper noun "Patriots Day," requiring the content to be about the history, traditions, and significance of this specific holiday. The modifier "en franais" dictates the language of delivery. Consequently, an article optimized for this keyword must provide a comprehensive explanation of Patriots Day, with all text written in French. The part of speech identifies the topic (noun) and the medium (modifier), providing a clear directive for content creation.