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In 1961-1962 NWK collaborated with the Danish utility Det Jyskfynske Elsamarbedje ( ELSAM ; now  DONG Energy  ) in the completion of the 220kV link from Flensburg to Aabenraa in  Denmark  : a further link between the power station at Schilling and Audorf was also under construction .
 country of headquarters: DONG Energy, Denmark
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:
 country of headquarters: DONG Energy, Denmark