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In 1902 he received his doctorate from the Albert Ludwigs University of Freiburg of Freiburg, and subsequently worked at the Herzberge asylum in Berlin-Lichtenberg. In 1923 he began work as an assistant to Karl Birnbaum Bonhoeffer (1868-1948) at the CharitA-Berlin. In 1927 he became an associate professor.
 education institution: Karl Birnbaum, Albert Ludwigs University of Freiburg
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: place of death, place of birth, education degree, education institution 
Text: {0} 
 Entity Pairs:  Karl Birnbaum, Albert Ludwigs University of Freiburg 
Answer:
 education institution: Karl Birnbaum, Albert Ludwigs University of Freiburg