{
  "dx": "normalized length",
  "er": "normalized energy density",
  "er_error": "normalized energy density",
  "er_ref": "normalized energy density",
  "fx": "normalized flux",
  "fx_error": "normalized flux",
  "fx_ref": "normalized flux",
  "fy": "normalized flux",
  "fy_error": "normalized flux",
  "fy_ref": "normalized flux",
  "fz": "normalized flux",
  "fz_error": "normalized flux",
  "fz_ref": "normalized flux",
  "material_egas": "normalized energy density",
  "material_egas_error": "normalized energy density",
  "material_egas_ref": "normalized energy density",
  "t": "normalized time",
  "x": "normalized length",
  "y": "normalized length",
  "z": "normalized length"
}