93895
There are many examples of courtesans who , by remaining discreet and respectful to their benefactors , were able to extend their careers into or past middle age and retire financially secure ; Catherine Walters is a good example .
 Catherine Walters
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:
 Catherine Walters