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However , early allusions to this people are present in ancient Greek and Latin authors previous to the conquest , and it allows the reconstruction of a few historical events of this people since the second century BCThanks to Silius Italicus , it 's known that between the years 218 and 201 BC , during the Second Punic War , some Gallaecian troops were involved in the fight in the ranks of Carthaginian Hannibal against the Roman army of Scipio Africanus .
 person: Silius Italicus; person: Hannibal; person: Scipio Africanus
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: Silius Italicus, Hannibal, Scipio Africanus 
Answer:
 person: Silius Italicus; person: Hannibal; person: Scipio Africanus