Towns and country names
Figure 579. Grouping towns by country names
| key | value |
|---|---|
"Germany" |
{"Berlin", "Munich",
"Stuttgart"}
|
"France" |
{"Paris", "Reims", "Nice",
"Tolouse"}
|
"United Kingdom" |
{"London", "Leeds",
"Coventry"}
|
| ... | ... |
"Italy" |
{"Rome", "Bari",
"Pisa"}
|
