1924
The commercial PC unit had revenues of $ 3 . 5 billion , up 28 percent from a year ago , and its operating income was $ 133 million , compared with a loss of $ 169 million a year ago .
 The commercial PC unit, its
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:
 The commercial PC unit, its