4464
Daimler-Benz , Krupp , MAN , and Rheinmetall all produced prototypes .
 Daimler-Benz, Krupp, MAN, Rheinmetall
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Daimler-Benz, Krupp, MAN, Rheinmetall