| This class represents physical quantites. A physical quantity is used to quantify a physical property. |
| •owl:Thing |
| •oilspills:Quantity |
| •oilspills:PhysicalQuantity |
Class(oilspills:PhysicalQuantity partial oilspills:Quantity) DisjointClasses(oilspills:PhysicalQuantity oilspills:ChemicalQuantity)