(documentationvesselGrossRegisteredTonnageEnglishLanguage "(vesselGrossRegisteredTonnage ?VESSEL ?AMOUNT) means that the WaterVehicle ?VESSEL has a carrying capacity when fully loaded of ?AMOUNT, where ?AMOUNT is the Gross Registered Tonnage (GRT) of the vessel, which is based on the total sheltered volume of the vessel measured in hundreds of cubic feet, and converted to gross tons at an equivalence of 100 cubic feet per ton.")