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Samir khalaf is a Lebanese sociologist. He was born in Beirut on October 14, 1933. He is married to Roseanne Khalaf and has two children. Khalaf has written extensively on the Arab world and on Lebanon in particular. The majority of themes in his work include sexuality in the Arab world, the Lebanese Civil War, Urbanization, and the role of the Protestant missionaries in the Levant. He is currently a professor of sociology at the American University of Beirut , and has also been a director of the Centre for Behavioural Research there since 1994. Khalaf received his bachelor's degree in Economics from the American University of Beirut in 1955, and later his MA in Sociology in 1957. Furthermore, he obtained an MA in Economics and Sociology in 1959, and PhD in Sociology in 1964 from Princeton University.
 education institution: Samir khalaf, American University of Beirut
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: Samir khalaf, American University of Beirut