15047
The movie was greenlit by the team of Robert O'Brien and Robert M. Weitman .
 Robert O'Brien, Robert M. Weitman
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:
 Robert O'Brien, Robert M. Weitman