September 11 School Holiday
The main point of the keyword phrase "september 11 school holiday" is the noun "holiday". In this grammatical construction, "holiday" serves as the head noun, which is the central element of the phrase. The preceding words, "September 11" and "school," function as modifiers that specify and describe this central noun. A detailed grammatical analysis reveals that the phrase is a compound noun phrase. "Holiday" is the core noun. The word "school" is an attributive noun (or noun adjunct), which is a noun used as an adjective to modify another noun, clarifying that the topic pertains to a holiday within the educational system. The term "September 11" is a proper noun phrase that also acts as a modifier, specifying the particular date or event the holiday is associated with. The structure is [modifier: date] + [modifier: type] + [head noun: concept], which progressively narrows the focus to a very specific subject. ...