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The businessmen of the Second Industrial Revolution created industrial towns and cities in the Northeast with new factories , and contributed to the creation of an ethnically diverse industrial working class which produced the wealth owned by rising super-rich industrialists and financiers called the " robber barons " .
 time: Second Industrial Revolution; location: Northeast
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: Second Industrial Revolution, Northeast 
Answer:
 time: Second Industrial Revolution; location: Northeast