The keyword term "patriots day weapons" is a noun phrase. The main point and grammatical head of this phrase is the noun "weapons".
In this construction, "Patriots Day" functions as a noun adjunct, which is a noun used to modify another noun. Its role is adjectival, specifying the context for the head noun "weapons." Therefore, the phrase refers not just to any weapons, but specifically to those associated with the historical events commemorated on Patriots' Day, such as the firearms, artillery, and blade weapons used during the Battles of Lexington and Concord in 1775.
For the purpose of an article, this grammatical analysis dictates that the primary subject must be the armaments themselves. The content should focus on the types of weapons, their technology, their use in battle, and their historical impact. The "Patriots Day" modifier frames this subject, providing the specific historical setting and limiting the scope of the discussion to the American Revolutionary War's opening engagements.
