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Born 1918 in Johannesburg, was the son of Sir Patrick Duncan. Duncan was educated first in South Africa and later in England, at Winchester College and at Balliol College , Oxford. In 1938 his friendship with a fellow Balliol student, Helmuth James Graf von Moltke , led to an invitation to stay with the von Moltke family in Germany: he thus came into contact with the anti-Nazi opposition group, the Kreisau Circle, and also spent three weeks in an Arbeitsdienst voluntary labour camp. Both experiences had a profound influence on him. In October 1939, having returned to South Africa, he travelled back to England hoping to join the army, but was rejected on medical grounds, because, since the age of 11, he had been lame, with a knee he couldn't bend due to an injury from a cricket ball that caused osteomyelitis.
 education institution: Helmuth James Graf von Moltke, Balliol College
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: Helmuth James Graf von Moltke, Balliol College