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we are now hearing once again , this coming to us off associated press wires there was an explosion there and we understand that several people have been killed .
 there, we, us, associated press, we, several people
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:
 there, we, us, associated press, we, several people