The keyword phrase "11 sep news" functions grammatically as a noun phrase, with the main point or head word being the noun "news."
In this construction, "11 sep" (an abbreviation for the date September 11th) acts as a noun adjunct, which is a noun used to modify another noun. Its function is adjectival, specifying the type or topic of the "news." It answers the question "Which news?" Therefore, while "11 sep" modifies the main word, the core grammatical and conceptual element of the entire phrase is the noun "news."
Identifying "news" as the principal noun is critical because it establishes that the article's subject is a set of information, events, or reports. The focus is on the thing itselfthe news content related to September 11thrather than an action (verb) or a descriptive quality (adjective). This dictates that the article will present, analyze, or discuss factual reports and their context.
