10798
As a result , at their mouths are estuaries and wetlands , such as the marshes of Doñana in the delta of the Guadalquivir , and wetlands of the Odiel .
 Doñana, Guadalquivir, Odiel
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Doñana, Guadalquivir, Odiel