74096
In summer 1971 , film producer Arthur P. Jacobs optioned the film rights to " Dune " , but died in summer 1973 , while plans for the film ( including David Lean already attached to direct ) were still in development .
 person: Arthur P. Jacobs; person: David Lean
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: Arthur P. Jacobs, David Lean 
Answer:
 person: Arthur P. Jacobs; person: David Lean