84390
Before even playing a single minute for Feyenoord , arch rivals Ajax made an offer on the new Feyenoord winger .
 Feyenoord, Ajax, Feyenoord
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Feyenoord, Ajax, Feyenoord