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Sepka , the two reference books I have on Peter Pan are : Fifty Years of Peter Pan , Roger Lancelyn Green , pub. by Peter Davies , London , 1954 .
 person: Sepka; cardinal: two; person: Peter Pan; work of art: Fifty Years of Peter Pan; person: Roger Lancelyn Green; organization: Peter Davies; geographical social political: London; date: 1954
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 person: Sepka; cardinal: two; person: Peter Pan; work of art: Fifty Years of Peter Pan; person: Roger Lancelyn Green; organization: Peter Davies; geographical social political: London; date: 1954