3358
They are often broader in scope than the theories of value of Adam Smith , David Ricardo , John Stuart Mill , Karl Marx , etc .
 person: Adam Smith; person: David Ricardo; person: John Stuart Mill; person: Karl Marx
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 person: Adam Smith; person: David Ricardo; person: John Stuart Mill; person: Karl Marx