44295
GPS measurements give earth-centered coordinates , usually displayed as height above the reference ellipsoid , which can not be related accurately to orthometric height above the geoid unless accurate gravity data is available for that location .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
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