Sentence:  If your principal place of abode for the tax year is outside the United States ( including Alaska and Hawaii ) , Puerto Rico , or the Virgin Islands and you have no legal residence or principal place of business in any internal revenue district in the <WSD>United</WSD> States , you should file your return with the Office of International Operations , Internal Revenue Service , Washington 25 , D. C. . 
Meaning of the word marked with <WSD> tags:  North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776