The term functions as a proper noun phrase. It acts as a single grammatical unit to name the specific concept of the holiday "Patriots' Day" in relation to the geographic entity "Utah." As a noun, it serves as the subject of an inquiry rather than an adjective modifying another word or a verb describing an action.
A grammatical analysis deconstructs the phrase into two distinct proper nouns. "Patriots' Day" refers to a specific civic holiday, primarily observed in Massachusetts and Maine, that commemorates the anniversary of the Battles of Lexington and Concord. The second noun, "Utah," functions as a locational specifier. This construction is common when querying the existence or details of an event within a particular jurisdiction. The core of the topic is the intersection of a regional holiday with a state where it is not officially recognized or widely observed.
For the practical purpose of creating content, the main point derived from this grammatical classification is that the phrase represents an informational query about a non-existent event. The article's purpose would be to clarify this fact. The content should explain what Patriots' Day is, where it is celebrated, and confirm that it is not a recognized holiday in Utah, thereby directly answering the question inherent in the noun phrase itself.