100867
It was a successful design and would have been built in greater numbers , but an order for a further ten was cancelled in 1930 due to the reduction in freight traffic as a result of the Great Depression .
 time: Great Depression
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: Great Depression 
Answer:
 time: Great Depression