About: http://webisa.webdatacommons.org/345226984

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	It is typically formed from absorbent material such as blotting paper.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com