85566
Human diet was estimated to cause perhaps around 35 % of cancers in a human epidemiological analysis by Richard Doll and Richard Peto in 1981 .
 person: Richard Doll; person: Richard Peto
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: Richard Doll, Richard Peto 
Answer:
 person: Richard Doll; person: Richard Peto