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As assistant professor ( “ Wissenschaftlicher Assistent “ ) , he taught at the University of Bern from 1981 on , until , in 1986 , he was called to a chair of New Testament Studies at Union Theological Seminary in Virginia , USA .
 Bern, Union Theological Seminary in Virginia
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Bern, Union Theological Seminary in Virginia