7225
Born in Farnstdt, Germany, Alfred Zehe was trained from a young age to be an underground copper miner. In 1964, he graduated from the University of Leipzig with a degree in Physics; in 1969, he received the degree of Doctor rerum naturalium; and in 1975, he received the degree of Doctor scientiae naturalium. He was Chairman of the Institute of Physics at the Technical University of Dresden from 1980 to 1991, during which time he taught periodically at the Autonomous University of Puebla in Puebla, Mexico. Prior to the 1990 German reunification, Zehe's ability to travel, including his teaching at University of Puebla, was contingent on his consulting with the East German government on matters of national security.
 education institution: Alfred Zehe, University of Leipzig
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: Alfred Zehe, University of Leipzig