About: http://webisa.webdatacommons.org/445347987

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	Z.sup.b, Z.sup.c independently of one another are a direct bond or a divalent unit selected from the group consisting of O, S, CO, CS, C(O)O, C(O)S, SO, SO.sub.2, NR.sup.d, SO.sub.2 NR.sup.d or C(O)NR.sup.d ;
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com