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Longmont  Colo. --  DigitalGlobe  provider of the world's highest-resolution commercial satellite imagery and geospatial information products today revealed the first images from WorldView-1 the highest resolution most agile commercial satellite ever flown .
 city of headquarters: Longmont, DigitalGlobe
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 city of headquarters: Longmont, DigitalGlobe