6779
For a contract to produce the autocode for the Ferranti Orion computer , Strachey hired Peter Landin who became his one assistant for the duration of Strachey 's consulting period .
 person: Strachey; person: Peter Landin; person: Strachey
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: Strachey; person: Peter Landin; person: Strachey