7845
in the ports , at the airports , even with our food supply , we have taken all kinds of steps .
 our, we, the ports, the airports
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 our, we, the ports, the airports