I live in Italy, and the chart shows 24 jobs openings for Napoli on Hacker News (64 in Rome...). I checked and I could not find a single text match for the word

I live in Italy, and the chart shows 24 jobs openings for Napoli on Hacker News (64 in Rome...). I checked and I could not find a single text match for the words Italy, Rome, Napoli, Neaples, Naples, etc. Can you better express how you extracted the location data?