27083
In the 1950 s , NSU had been the world 's largest manufacturer of motorcycles , but had moved on to produce small cars like the NSU Prinz , the TT and TTS versions of which are still popular as vintage race cars .
 NSU
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 NSU