Dataset {
    Int32 id[id = 104];
    Grid {
     ARRAY:
        Int32 h_id[id = 104];
     MAPS:
        Int32 id[id = 104];
    } h_id;
    Byte h_name[id = 104][21];
    Sequence { Sequence { Sequence { Float64 ordinate; Float64 abscissa; } ring; } polygon; } the_geom[id = 104];
    Byte wid[id = 104][5];
    Byte zone_name[id = 104][17];
} Health_District;