About: http://webisa.webdatacommons.org/240467815

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	an isopropyl group, a butyl group, an isobutyl group, a sec-butyl group, and a tert-butyl group; and more preferred are a methyl group and an ethyl group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com