5355
doof , who is an electrical engineer , says his vision for the display was ahead of its time .
 doof , who is an electrical engineer, who, an electrical engineer, his
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
Answer:
 doof , who is an electrical engineer, who, an electrical engineer, his