121483
Archaeologists have found four , or possibly five , large Mesolithic postholes ( one may have been a natural tree throw ) , which date to around 8000 BC , beneath the nearby old tourist car-park in use until 2013 .
 time: Mesolithic
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: Mesolithic 
Answer:
 time: Mesolithic