About: http://webisa.webdatacommons.org/214928030

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 alkylene group preferably contains from 1-4 carbons atoms such as methylene, ethylene, propylene and the like, optionally substituted with for example an alkyl group, such as methyl and ethyl.
http://www.w3.org/ns/prov#wasQuotedFrom	google.fr