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Born in North Dakota , U.S., Robert Bundtzen moved to Alaska with his parents when he was 11 years old. Although he started mushing as teenager, it was in 1993 that he began to seriously compete. In 1995, in his Iditarod debut, he finished 40th. He has participated eight times in the world longest dog sled run and has always finished. His best position was in 1997 where he came in 27th. His best time is 10 days, 15 hours, 25 minutes set in 2006.
 place of birth: Robert Bundtzen, North Dakota
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: place of death, place of birth, education degree, education institution 
Text: {0} 
Answer:
 place of birth: Robert Bundtzen, North Dakota