About: http://webisa.webdatacommons.org/283558446

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	They may be used in the form of e.g. a rod, hollow tube, film, sheet, microspheroidal particles or pellets.
http://www.w3.org/ns/prov#wasQuotedFrom	google.co.uk