1486
The Norfolk and Western Railway decided to make a change in which the motion-limiting bumpers were placed on the front of the signal instead of inside at the rear , so that the torque on the armature was reduced .
 organization: Norfolk and Western Railway
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:
 organization: Norfolk and Western Railway