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suddenly we realized water came into the engine room and it was rising and they started to pump , of course , and they pumped and pumped and the water came more and more and more .
 we, they, they, the engine room
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:
 we, they, they, the engine room