84269
Names and cities ( such as Niagara Falls ) have been used as the trigger , which then sends the unbalanced person into a state of mania ; the implication is that the words have an unpleasant association in the character 's past .
 location: Niagara Falls
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: Niagara Falls 
Answer:
 location: Niagara Falls