5574
There were participants from 18 countries - Bulgaria , Soviet Union , Hungary , Czechoslovakia , Romania , East Germany , West Germany , Cuba , Poland , North Korea , Yugoslavia , Sweden , Denmark , France , Belgium , the Netherlands , Italy and Japan .
 location: Bulgaria; location: Soviet Union; location: Hungary; location: Czechoslovakia; location: Romania; location: East Germany; location: West Germany; location: Cuba; location: Poland; location: North Korea; location: Yugoslavia; location: Sweden; location: Denmark; location: France; location: Belgium; location: Netherlands; location: Italy; location: Japan
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Bulgaria; location: Soviet Union; location: Hungary; location: Czechoslovakia; location: Romania; location: East Germany; location: West Germany; location: Cuba; location: Poland; location: North Korea; location: Yugoslavia; location: Sweden; location: Denmark; location: France; location: Belgium; location: Netherlands; location: Italy; location: Japan