36450
The Emperors of Tenochtitlan and Texcoco were nominally equals , each receiving two-fifths of tribute from the vassal kingdoms , whereas the Emperor of Tlacopan was a junior member and only received one-fifth of the tribute , due to the fact that Tlacopan was a newcomer to the alliance .
 Tenochtitlan, Texcoco, Tlacopan, Tlacopan
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Tenochtitlan, Texcoco, Tlacopan, Tlacopan