79960
This second propeller was a " virtually unique " example , made of lemonwood , that had been used by Igor Bensen in an unsuccessful attempt on the autogyro speed record .
 Igor Bensen
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Igor Bensen