Dataset {
    Float32 X[X = 66];
    Float32 L[L = 1];
    Float32 Y[Y = 77];
    Float32 S[S = 18];
    Grid {
     ARRAY:
        Float64 PredErrorVars[S = 18][L = 1][Y = 77][X = 66];
     MAPS:
        Float32 S[S = 18];
        Float32 L[L = 1];
        Float32 Y[Y = 77];
        Float32 X[X = 66];
    } PredErrorVars;
} Forecast;