About: http://webisa.webdatacommons.org/393172191

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	Key: Blue pentagons ??? sodium ions; Purple squares ??? potassium ions; Yellow circles ??? chloride ions; Orange rectangles ??? membrane-impermeable anions (these arise from a variety of sources including proteins).
http://www.w3.org/ns/prov#wasQuotedFrom	wikipedia.org