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The most recent occupation horizon , on top of a layer of volcanic depositions dates to the Neolithic ( around 3,600 years B.P. ) and contained ceramic shards , stone tool fragments , faunal remains and human burials .
 Neolithic
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Neolithic