114667
The vehicle was subsequently converted back to conventional suspension and saw use in tests that led to the introduction of the Class 91 locomotives .
 vehicle: Class 91
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: Class 91 
Answer:
 vehicle: Class 91