13532
The subspecies " nigricans " , described by ornithologist L. S. Stepanyan in 1961 , is found in northern Xinjiang 's Manasi River valley .
 person: L. S. Stepanyan; location: Xinjiang; location: Manasi River
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: L. S. Stepanyan, Xinjiang, Manasi River 
Answer:
 person: L. S. Stepanyan; location: Xinjiang; location: Manasi River