133891
At least 23 people have been killed in late afternoon in broad daylight , with dark ( very dark ) clouds tornadoes that ripped through the central United States on Saturday May 10 with over 150 reported injured and at least three people are missing .
 United States
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 United States