The keyword phrase "patriot day coloring" is a noun phrase, where the main point or head noun is "coloring." The term "Patriot Day" is a proper noun functioning as a noun adjunct, which modifies the head noun. In this capacity, "Patriot Day" acts as an adjective, specifying the theme or type of coloring being referenced.
Grammatically, "coloring" is a gerund (a verb form ending in "-ing" that functions as a noun) that refers to the activity itself or to the materials associated with it, such as coloring pages or books. The modifier "Patriot Day" provides the specific context. It indicates that the subject matter of the coloring activity is related to the annual U.S. observance on September 11, which commemorates the victims of the 2001 terrorist attacks. The thematic content implied by this modifier typically includes imagery of American flags, first responders, national monuments, and other symbols of patriotism and remembrance.
In practical application, this noun phrase is used to identify and categorize a specific type of resource. It describes themed, often educational, materials designed for children or students to engage with the subject of Patriot Day in a reflective and age-appropriate manner. The phrase precisely defines content created for the purpose of commemorating this specific historical event through a creative activity.