10170
They did not pay tribute to the Ottoman Empire ; instead the Ottomans paid them in return for their services of providing skilled outriders and frontline cavalry in their campaigns .
 location: Ottoman Empire; location: Ottomans
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: Ottoman Empire; location: Ottomans