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In 1984 , timbers recovered from Corlea were radiocarbon date d to the Iron Age , rather than the Bronze Age as had been expected , and an archaeological project was established under the leadership of Professor Barry Raftery to investigate the site before it was destroyed by peat-digging .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None