The keyword phrase is an interrogative clause, a type of sentence that asks a direct question. The functional core of this clause is the interrogative adverb "when," which specifically inquires about time. Consequently, the main point for an article based on this query is not a noun or a verb, but the temporal information that directly answers the question posed by this adverb.
Analyzing the components reveals a clear structure: "when" is an interrogative adverb establishing the need for time-related data. The verb "is" links the query to the subject. The subject itself is a compound proper noun phrase, "Veterans Day Parade NYC," which specifies the exact event and location. While the noun phrase identifies the topic, the adverb "when" dictates the user's primary intent and the necessary focus of the content. The purpose is to resolve the temporal unknown associated with the subject.
In practical application, the grammatical function of this phrase dictates that the article's primary objective must be to provide the date and time of the event. The most crucial information to deliver is the answer to "when." Therefore, the main point of the article should be the specific schedule details for the parade. All other information, such as the parade route or history, serves as secondary, contextual support for this primary temporal data.
