Wikipedia:Out of scope

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Shortcut WP:OOS

The scope of an article is the topic or subject matter, which is defined by reliable sources. The extent of the subject matter identifies the range of material that belongs in the article, and thus also determines what does not belong (i.e., what is "out of scope").

The lead, ideally the introductory sentence or at least introductory paragraph, of an article, should make clear what the scope of the article is.