38675
Omaha Nighthawks Boatman was signed by the Omaha Nighthawks of the United Football League on July 5 , 2011 .
 Omaha Nighthawks Boatman, Omaha Nighthawks, United Football League
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Omaha Nighthawks Boatman, Omaha Nighthawks, United Football League