56744
One of the photographic series by Julia Margaret Cameron , a pupil of the painter George Frederic Watts , was of mythical characters , for whom she used the children of friends and servants as models .
 Julia Margaret Cameron, George Frederic Watts
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:
 Julia Margaret Cameron, George Frederic Watts