About: http://webisa.webdatacommons.org/297480612

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	The foregoing chemical methods also involves problems; for example, 1 environmental pollution, and 2 a considerable burden required for the disposal of liquid wastes used such as chemicals and solvents.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com