About: http://webisa.webdatacommons.org/18950705

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	Examples of natural gums or elastomers are natural rubber, chicle, lechi caspi and jelutong, and typical synthetic elastomers are polyisobutylene, isobutylene-isoprene copolymer, and butadiene-styrene copolymer.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es