#Hudson_River__Hudson  a New York river; flows southward into New York Bay; explored by Henry Hudson early in the 17th century
  supertype:  #river  a large natural stream of water (larger than a creek); "the river was navigable for 50 miles"
  part of:  #New_York_State__New_York__Empire_State__NY  a Mid-Atlantic state; one of the original 13 colonies
     part of:  #Mid-Atlantic_states  a region of the eastern United States comprising New York and New Jersey and Pennsylvania and Delaware and Maryland
        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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