{
  "fields": [{"id":"_id","type":"int"},{"id":"河川名","type":"text"},{"id":"上流端","type":"text"},{"id":"延長(m)","type":"numeric"}],
  "records": [
    [1,"由良川","南丹市美山町芦生",124276],
    [2,"桂川","京都市左京区広河原",112830],
    [3,"木津川","相楽郡南山城村字北大河原（三重県界）",51600],
    [4,"土師川","船井郡京丹波町鎌谷奥",42927],
    [5,"上林川","綾部市老富町",33733],
    [6,"竹野川","京丹後市大宮町五十河",32605],
    [7,"牧川","福知山市夜久野町板生",29060],
    [8,"淀川","左岸　綴喜郡宇治田原町（滋賀県界）",21485],
    [9,"淀川","右岸　宇治市笠取（滋賀県界）",24545],
    [10,"鴨川","京都市北区雲ケ畑",23045]
]}