#Columbia_River__Columbia  a North American river; rises in southwestern Canada and flows southward across Washington to form the border between Washington and Oregon before emptying into the Pacific; known for its salmon runs in the spring
  supertype:  river  a large natural stream of water (larger than a creek); "the river was navigable for 50 miles"
  part of:  Canada  a nation in northern North America; the French were the first Europeans to settle in mainland Canada; "the border between the United States and Canada is the longest unguarded border in the world"
     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
  part of:  Washington_State__Washington__Evergreen_State__WA  a state in northwestern United States on the Pacific
     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

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