335115
The final variant , the XBT-2 , was a BT-1 modified to incorporate landing gear which folded laterally into recessed wheel wells , leading edge slot s , a redesigned canopy , and was powered by an Wright XR-1820-32 radial .
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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:  
Answer:
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