108811
Theories of crime and punishment have become increasingly diverse as the phenomenon of diversity has been studied by the medical , psychological , behavioural , social , economic , and political sciences .
 diversity
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:
 diversity