About: http://webisa.webdatacommons.org/201872752

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	group, or a halogen or hydrogen atom, k is an integer of at least 1, and k+l+m+n=4.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com