About: http://webisa.webdatacommons.org/228412867

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 one embodiment, the membrane is a tube with a single opening while in another embodiment the membrane is a sleeve with openings on both ends.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com