DDS past semantic check
DDS past full semantic check
Dataset {
    Sequence {
        String name;
        Int32 age;
    } person;
    Structure {
        Int32 j;
        Int32 i;
        Structure {
            Int32 i;
            Float64 f[10];
        } data;
    } exp;
    Grid {
      Array:
        Float64 g[10][10][10];
      Maps:
        Float64 lat[10];
        Float64 lon[10];
        Float64 weirdness[10];
    } strange;
} data6;