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Having been used since at least the 16th century to refer to a prowler or a poacher ( " Oxford English Dictionary " ) , the term " stalker " was initially used by media in the 20th century to describe people who pester and harass others , initially with specific reference to the harassment of celebrities by strangers who were described as being " obsessed " .
 media: Oxford English Dictionary
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: Oxford English Dictionary 
Answer:
 media: Oxford English Dictionary