The keyword term functions as a compound noun, or more precisely, a noun phrase. The core or head noun in this construction is "personality." The preceding words, "11 sep" and "birthday," act as noun adjuncts or adjectival modifiers, specifying and narrowing the scope of the head noun.
A detailed grammatical breakdown reveals "personality" as the central subject. The noun "birthday" modifies it, indicating that the personality type is determined by a date of birth. The specific date, "11 sep," further refines this category, creating a highly specific concept. This sequential modification transforms a general term into a precise subject for discussion. The entire phrase operates as a single semantic unit, naming a specific set of theorized traits and characteristics associated with being born on that particular day.
Understanding this grammatical function is critical because it establishes the article's subject as a concept to be defined and described. The main point is not an action (verb) or a quality (adjective), but an entitythe collection of traits attributed to individuals with this birth date. Consequently, the article's structure should focus on defining this concept, exploring its associated characteristics, and analyzing its astrological, numerological, or psychological underpinnings, treating the subject as an object of analysis.
