Material Element	CHEMROF	Source
http://sweet.jpl.nasa.gov/2.3/matrElement.owl#Nonmetal	https://w3id.org/chemrof/ElementFamilyEnum#Non-Metal	LOOM
http://sweet.jpl.nasa.gov/2.3/matrElement.owl#NobleGas	https://w3id.org/chemrof/ElementFamilyEnum#Noblegas	LOOM
http://sweet.jpl.nasa.gov/2.3/matrElement.owl#ChemicalElement	https://w3id.org/chemrof/ChemicalElement	LOOM
http://sweet.jpl.nasa.gov/2.3/matrElement.owl#Halogen	https://w3id.org/chemrof/ElementFamilyEnum#Halogen	LOOM