About: http://webisa.webdatacommons.org/287779395

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	This may have various reasons, such as especially their low stability in vivo, their complex or fragile structure, the difficulty of producing them on an industrially acceptable scale and the like.
http://www.w3.org/ns/prov#wasQuotedFrom	docstoc.com