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The Amphitheatre of Merida , was built in the roman colony of Emerita Augusta , which was founded in 25 B.C. by Octavius Augustus , to resettle emeritus soldiers discharged from the Roman army from two veteran legions of the Cantabrian Wars : Legio V Alaudae and Legio X Gemina .
 Octavius Augustus, Legio V Alaudae, Legio X Gemina
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Octavius Augustus, Legio V Alaudae, Legio X Gemina