25347
The 1915 batch ( Classified 52 and 502 ) had direct motion , without rocker arms , driving inclined piston valves , and Robinson superheater .
 Robinson
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:
 Robinson