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These systems charged for access , typically a flat monthly fee , compared to the per-hour fees charged by " Event Horizons BBS " and most online services .
 organization: Event Horizons BBS
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: Event Horizons BBS 
Answer:
 organization: Event Horizons BBS