Simplify the following text for a Grade 9 native English-speaking person.
Original: In some instances the District of Columbia , large islands ( U.S. Territories \/ Insular Areas ) or small islands ( U.S. Minor Outlying Islands ) may not have their own articles on particular topics .
Simplified: In some instances the District of Columbia , U.S. Territories ( Insular Areas ) or U.S. Minor Outlying Islands may not have their own articles on particular topics .