About: http://webisa.webdatacommons.org/62104022

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, highly preferably Y is a nitrogen or phosphorus containing group corresponding to the formula --NR-- or --PR-- wherein R is C1 -C20 alkyl, i.e., an alkyl amido or alkyl phosphido group.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com