19531
The film was written in part by E. Phillips Oppenheim , a very popular novelist at the time .
 E. Phillips Oppenheim
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 E. Phillips Oppenheim