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Born in Ulvik, Norway Kristofer Kristofersson Hjeltnes worked to spread horticulture in Western Norway in general, especially fruit growing. He founded his own horticultural school, and managed it from 1901 to 1918. Later, Olav H. Hauge would attend the school.
 place of birth: Kristofer Kristofersson Hjeltnes, Ulvik, Norway
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: Kristofer Kristofersson Hjeltnes, Ulvik, Norway