Dataset {
    Float32 S[S = 5];
    Float32 X[X = 15];
    Grid {
     ARRAY:
        Float64 PredErrorVars[S = 5][X = 15];
     MAPS:
        Float32 S[S = 5];
        Float32 X[X = 15];
    } PredErrorVars;
} PredErrorVars;