PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Examples of suitable bases are alkali metal or alkaline earth metal hydroxides, hydrides, oxides or alcoholates, such as sodium, potassium and lithium hydroxide, sodium methylate, ethylate or tert-butylate, sodium and calcium hydride and calcium oxide.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com