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Remains of ancient buildings exist in the neighborhood of the road on each side ( near the modern Castel di Guido ) and remains of tombs , inscriptions , etc. , were excavated in 1823 – 1824 .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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