You did exactly what I suggested you don't do. Don't look at the whole. These are the things you actually need to do:

• Identify if a neighbourhood name starts with 'k'.
• Get a city's list of neighbourhoods.
• Get a province's list of cities.
• Identify if a province's name starts with 'c'.
• Get a country's list of provinces.
• Get a list of countries.

They're all independent. Nothing in there even suggests that you have a nested structure in memory.

The hard part:

print("$country_name/$province_name/$city_name/$neighbourhood_name\n")
    if $neighbourhood_name =~ /^k/i;
[download]

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