Dataset {
  Grid {
    ARRAY:
      Float32 classfrac[time = 1][lev = 16][lat = 150][lon = 360];
    MAPS:
      Float64 time[time = 1];
      Float64 lev[lev = 16];
      Float64 lat[lat = 150];
      Float64 lon[lon = 360];
  } classfrac;
  Float64 time[time = 1];
  Float64 lev[lev = 16];
  Float64 lat[lat = 150];
  Float64 lon[lon = 360];
} gswp/grid/fixed/classfrac_sib;