About: http://webisa.webdatacommons.org/154831594

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 mass modifying functionality can be, for example, a halogen, an azido, or of the type XR. Wherein X is a linking group and R is a mass modifying functionality.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com