Dataset {
    Float32 X[X = 4321];
    Float32 Y[Y = 2159];
    Grid {
     ARRAY:
        Float32 partial_X[Y = 2159][X = 4321];
     MAPS:
        Float32 Y[Y = 2159];
        Float32 X[X = 4321];
    } partial_X;
} partial_X;