77895
From 1991 to 1993 , he was a member of the management team of Regional Environmental Center for Central and Eastern Europe ( REC ) in Budapest , Hungary .
 Regional Environmental Center for Central and Eastern Europe, Budapest, Hungary
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Regional Environmental Center for Central and Eastern Europe, Budapest, Hungary