Radiology Lexicon	Chemical Process	Source
http://sweet.jpl.nasa.gov/2.3/propChemical.owl#Composition	http://www.radlex.org/RID/RID39409	LOOM
http://sweet.jpl.nasa.gov/2.3/prop.owl#Property	http://www.radlex.org/RID/RID35977	LOOM
http://sweet.jpl.nasa.gov/2.3/propMass.owl#Density	http://www.radlex.org/RID/RID39166	LOOM