About: http://webisa.webdatacommons.org/301718890

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	ay contain suspended or dissolved impurities, including but not limited to seawater, brackish water or other kinds of polluted water, through one or more layers of hydrophilic membrane to remove impurities from the water.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com