About: http://webisa.webdatacommons.org/281715155

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	Thus, D may be, for example, an unsubstituted group such as H, halogen, hydroxy, ???NH2, thio (S), ???C1-C6 alkyl or ???C1-C6 alkoxy.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com