4336
His father was a Jewish emigrant from Riga , Latvia , then part of Russia .
 location: Riga; location: Latvia; location: Russia
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: Riga; location: Latvia; location: Russia