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The “ eth - ” prefix and the qualifier “ ethyl ” in “ ethyl alcohol ” originally come from the name “ ethyl ” assigned in 1834 to the group − by Justus Liebig .
 person: Justus Liebig
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: Justus Liebig 
Answer:
 person: Justus Liebig