59432
From source to mouth , the river is joined by 25 tributaries including the Gell , Boyes , Pokana , Holley , Adams , Serpentine , Albert , Orange , Smith , Denison , Olga , Sprent , Franklin , and the Spence rivers .
 Gell, Boyes, Pokana, Holley, Adams, Serpentine, Albert, Orange, Smith, Denison, Olga, Sprent, Franklin, Spence
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Gell, Boyes, Pokana, Holley, Adams, Serpentine, Albert, Orange, Smith, Denison, Olga, Sprent, Franklin, Spence