Property:Mass
From semanticweb.org
Use this to define the masswarning.pngUnsupported type "Mass" defined for property. of something. For scientific values it is preferable to Property:weight, as weight depends on the location of the object.
In formulae, typically has symbol m.
Query for property, sorted by mass: <ask sort=mass>+*</ask>
Query for property, displayed in kg and g: <ask sort=mass>+*kg*g</ask>