@prefix dce: <http://purl.org/dc/elements/1.1/>.
@prefix owl: <http://www.w3.org/2002/07/owl#>.
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>.
@prefix skos: <http://www.w3.org/2004/02/skos/core#>.
@prefix state: <http://sweet.jpl.nasa.gov/2.3/statePhysical.owl#>.
@prefix rela: <http://sweet.jpl.nasa.gov/2.3/rela.owl#>.
@prefix physical: <http://eulersharp.sourceforge.net/2003/03swap/physicalResource#>.
@prefix subfor: <http://eulersharp.sourceforge.net/2003/03swap/substanceForms#>.

<http://eulersharp.sourceforge.net/2003/03swap/substanceForms#>
	a owl:Ontology;
	dce:title """Substance Forms"""@en;
	dce:creator """Hans Cools, MD; Agfa Healthcare, Belgium"""@en;
	dce:publisher """Agfa Healthcare/Belgium"""@en;
	dce:description """Formal description of substance forms."""@en;
	dce:format """OWL Full"""@en.

#
# CLASSES
#	

subfor:GranularSubstance
	a rdfs:Class;
	rdfs:isDefinedBy <http://eulersharp.sourceforge.net/2003/03swap/substanceForms#>;
	rdfs:label """granular substance"""@en;
	skos:definition """Conglomeration of discrete solid, macroscopic particles characterized by a loss of energy whenever the particles interact. The most common example would be friction when grains collide."""@en;
	rdfs:subClassOf physical:Resource;
	rela:hasState state:Solid.

subfor:Powder
	a rdfs:Class;
	rdfs:isDefinedBy <http://eulersharp.sourceforge.net/2003/03swap/substanceForms#>;
	rdfs:label """powder"""@en;
	skos:definition """Bulk solid composed of a large number of very fine particles that may flow freely when shaken or tilted."""@en;
	rdfs:subClassOf subfor:GranularSubstance.