Individual #Saint_Louis__St._Louis__Gateway_to_the_West  the largest city in Missouri; was an important staging area for wagon trains westward in the 19th century
  instance of:  #city
  part of:  #Missouri__Show_Me_State__MO  a midwestern state in central United States
     part of:  #Midwest_USA__Middle_West_USA  the north central region of the United States
        part of:  #USA__United_States_of_America__United_States__America__US__U.S.__U.S.A.  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
           part of:  #North_America  a continent (the third largest) in the western hemisphere connected to South America by the Isthmus of Panama
              part of:  #northern_hemisphere  the hemisphere north of the equator
              part of:  #western_hemisphere__westernhemisphere__occident__New_World  the hemisphere that includes North and South America
              part of:  #the_Americas__America  North and South America

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