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One theory , widely believed in ancient times , is that they originated in the northern mountainous regions of Greece , ancient Macedonia and Epirus , and obscure circumstances brought them south into the Peloponnese , to certain Aegean islands , Magna Graecia , Lapithos and Crete .
 Greece, Macedonia, Epirus, Peloponnese, Aegean, Magna Graecia, Lapithos, Crete
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Greece, Macedonia, Epirus, Peloponnese, Aegean, Magna Graecia, Lapithos, Crete