Please answer the following question: Inkognitogata 18 - Inkognitogata 18 is the official residence of the Prime Minister of Norway. It is located in Oslo the capital of Norway. The residence was completed in 2008 and is a complex of new and old buildings. Given a choice of categories company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, the text refers to which one?
Answer:
Building