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The first expansion , which was collaboratively produced by Joseph Locke , Richard Turner , William Fairbairn , and John Kennedy , was completed in 1849 at a total cost of £ 15,000 ( ) .
 person: Joseph Locke; person: Richard Turner; person: William Fairbairn; person: John Kennedy
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 person: Joseph Locke; person: Richard Turner; person: William Fairbairn; person: John Kennedy