8105
The same study estimates a 20,552 " km occupied area for the Sumatran orangutans , of which only an approximate area range of 8,992 " km harbors permanent populations .
 location: Sumatran
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: Sumatran