12007
Thousands of Trump supporters stuck on freezing Omaha airfield after rally {{URL}} via {@NBC News@}
 Trump, Omaha airfield, rally, NBC News
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: group, creative work, person, event, product, location, corporation 
Text: {0} 
Answer:
 Trump, Omaha airfield, rally, NBC News