Dataset {
    Float32 L[L = 3];
    Float32 X[X = 15];
    Float32 T[T = 3];
    Grid {
     ARRAY:
        Float64 partial_X[L = 3][T = 3][X = 15];
     MAPS:
        Float32 L[L = 3];
        Float32 T[T = 3];
        Float32 X[X = 15];
    } partial_X;
} partial_X;