110383
Radiocarbon dates , including analysis of an olive branch buried beneath a lava flow from the volcano that gave a date between 1627 " BCE and 1600 " BCE ( 95 % confidence interval ) , suggest an eruption date more than a century earlier than suggested by archaeologists .
 olive branch
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:
 olive branch