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In the 1930s and 1940s , it diversified into aircraft maintenance and manufacturing as well as air transport , establishing Hunting Aircraft in 1944 by the purchase of Percival Aircraft : this business was absorbed into the British Aircraft Corporation in 1959 .
 Hunting Aircraft, Aircraft, British Aircraft Corporation
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hunting Aircraft, Aircraft, British Aircraft Corporation