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Skeptical investigator Joe Nickell has written that some of the reports may represent sightings of the black bear ( " Ursus americanus " ) and it is likely that other sightings are hoaxes or misidentification of wildlife .
 person: Joe Nickell; animal: black bear
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: Joe Nickell, black bear 
Answer:
 person: Joe Nickell; animal: black bear