About: http://webisa.webdatacommons.org/37514514

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	In the magnetic recording medium of the third invention, the compositions of the underlayer and the interlayers may be different one another, as long as these layers are made of vanadium or an alloy mainly containing vanadium.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com