Individual #Houston  the largest city in Texas; located in southeastern Texas near the Gulf of Mexico; site of the National Aeronautics and Space Administration
  instance of:  #city
  part of:  #Texas__Lone-Star_State__TX  the second largest state; located in southwestern United States on the Gulf of Mexico
     part of:  #Gulf_States  a region of the United States comprising states bordering the Gulf of Mexico; Alabama and Florida and Louisiana and Mississippi and Texas
        part of:  #South_USA  the region of the United States lying south of the Mason-Dixon line
           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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