10873
Ken Olsen was not supportive of this project , feeling it did not offer sufficient advantages over the 12-bit PDP-8 and the 18-bit PDP-9 .
 person: Ken Olsen
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Ken Olsen