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Fritz Heider was born in Vienna, Austria in 1896. His approach to higher education was rather casual, and he wandered freely throughout Europe studying and traveling as he pleased for many years. At the age of 24 he received a Ph.D. from the University of Graz, main campus of Graz, for his innovative study of the causal structure of perception included the work on 'Thing and Medium' which involved perception, and traveled to Berlin, where he worked at the Psychology Institute under Wolfgang Koehler, Max Wertheimer and Kurt Lewin. In 1927 he accepted a position at the University of Hamburg, whose faculty included the psychologist William Stern and Ernst Cassirer, the philosopher whose thinking on the role of theory on science had an important influence on Kurt Lewin.
 education institution: Fritz Heider, University of Graz, main campus
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:
 education institution: Fritz Heider, University of Graz, main campus