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The United States Environmental Protection Agency , FAA , and others are working on economically feasible replacements for leaded avgas , which still releases 100 tons of lead every year .
 organization: United States Environmental Protection Agency; organization: FAA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: United States Environmental Protection Agency; organization: FAA