#Charlestown_Navy_Yard  the navy yard in Boston where the frigate `Constitution' is anchored
  supertype:  #navy_yard__naval_shipyard__navalshipyard  a military shipyard
  part of:  #Boston__Hub_of_the_Universe__Beantown__capital_of_Massachusetts  state capital and largest city of Massachusetts
     part of:  #Massachusetts__Bay_State__Old_Colony__MA  a state in New England; one of the original 13 colonies
        part of:  #New_England  a region of northeastern United States comprising Maine and New Hampshire and Vermont and Massachusetts and Rhode Island and Connecticut
           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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