About: http://webisa.webdatacommons.org/175171791

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	Scheme (a) for example: ##STR4## wherein M is an alkali or alkaline earth metal such as sodium, potassium or lithium.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com