235398
Career He has written two books on the history of the Norwegian Broadcasting Corporation ( NRK ) : Hallo-Hallo ( 1975 ) and Dette er London ( 1978 ) .
 Norwegian Broadcasting Corporation
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Norwegian Broadcasting Corporation