% ls
sample.json
% cat sample.json
{
"type": "FeatureCollection",
"features": [
{ "type": "Feature", "properties": { "pref": "富山県", "city1": "下新川郡", "city2": "朝日町"}, "geometry": { "type": "Polygon", "coordinates":[ [ [ 136.111111, 36.111111 ], [ 136.222222, 36.222222 ]]] }},
{ "type": "Feature", "properties": { "pref": "富山県", "city1": "氷見市", "city2": ""}, "geometry": { "type": "Polygon", "coordinates":[ [ [ 136.333333, 36.333333 ], [ 136.444444, 36.444444 ]]] }},
{ "type": "Feature", "properties": { "pref": "富山県", "city1": "高岡市", "city2": ""}, "geometry": { "type": "Polygon", "coordinates":[ [ [ 136.555555, 36.555555 ], [ 138.666666, 36.666666 ]]] }}
]
}