110607
Upon his discharge in 1945 , he joined the Bears for one game before he was banned by the NFL 's commissioner because he had signed a contract to play for the Browns in the rival AAFC .
 Bears, Browns, AAFC
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Bears, Browns, AAFC