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Human record-keeping arguably dates back to the cave painting boom of the upper paleolithic , some 32,000 - 40,000 years ago .
 time: upper paleolithic
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: upper paleolithic 
Answer:
 time: upper paleolithic