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One of the reasons is because we use grenades a lot in clearing buildings , and grenades ten to offend downhill rather than uphill .
 organization: we; facility: buildings; weapon: grenades; weapon: grenades
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 organization: we; facility: buildings; weapon: grenades; weapon: grenades