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Born in Dayton , Ohio, C. Martin Wilbur went at an early age with his parents to China, where they worked with the YMCA. He returned to Ohio for college, graduating from Oberlin College in 1931. His first job after receiving his PhD from Columbia University in 1941 was with the Field Museum, in Chicago, where he prepared for publication a study of plant migration left by Berthold Laufer after his death and developed a monograph on slavery in the Han Dynasty.
 place of birth: C. Martin Wilbur, Dayton
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: C. Martin Wilbur, Dayton