About: http://webisa.webdatacommons.org/425602276

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	Other metabolic products include: uric acid, creatinine, electrolytes or salts such as sodium chloride, potassium chloride and bicarbonate).Urea is one of the end products of protein metabolism.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com