5195
In 1982 , Zaliznyak turned his interests towards the birch scrolls which have been unearthed in Novgorod since 1950s .
 person: Zaliznyak; location: Novgorod
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:
 person: Zaliznyak; location: Novgorod