{
  "basis": "invented gross equipment masses; no animal requirements or carrying-capacity assumptions",
  "excluded": ["animal mass", "human supplies", "unlisted equipment"],
  "cases": [
    {"id": "all_listed_masses_known", "modules": [
      {"id": "packed_water", "kg": "2.40", "in_bag": true},
      {"id": "packed_food", "kg": "1.60", "in_bag": true},
      {"id": "bowls_sanitation", "kg": "0.80", "in_bag": true},
      {"id": "document_pouch", "kg": "0.20", "in_bag": true},
      {"id": "empty_bag", "kg": "0.70", "in_bag": true},
      {"id": "empty_carrier", "kg": "2.30", "in_bag": false}
    ]},
    {"id": "medication_mass_unknown", "modules": [
      {"id": "packed_water", "kg": "2.40", "in_bag": true},
      {"id": "packed_food", "kg": "1.60", "in_bag": true},
      {"id": "bowls_sanitation", "kg": "0.80", "in_bag": true},
      {"id": "document_pouch", "kg": "0.20", "in_bag": true},
      {"id": "empty_bag", "kg": "0.70", "in_bag": true},
      {"id": "empty_carrier", "kg": "2.30", "in_bag": false},
      {"id": "medication_module", "kg": null, "in_bag": true}
    ]}
  ]
}