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A notable exception of this was during the " Clockwork Angels Tour " , when a string ensemble played string parts , which were originally arranged and conducted by David Campbell on " Clockwork Angels " .
 event: Clockwork Angels Tour; person: David Campbell; media: Clockwork Angels
Please list all entity words in the text that fit the category.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} 
Answer:
 event: Clockwork Angels Tour; person: David Campbell; media: Clockwork Angels