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Design and development The second design of Pierre Levasseur was the PL .2 a single-seat unequal-span biplane inspired by designs from Blackburn Aircraft .
 person: Pierre Levasseur; organization: Blackburn Aircraft
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Pierre Levasseur, Blackburn Aircraft 
Answer:
 person: Pierre Levasseur; organization: Blackburn Aircraft