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The protest blocked several crew trucks from exiting the venue , putting the tour behind schedule , and tour promoter MCD Productions delivered a letter to the protesters informing them that they could be sued for any of the tour 's financial losses due to the protest .
 MCD Productions
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 MCD Productions