About: http://webisa.webdatacommons.org/91252929

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	In the general formula (2), R7 represents a hydrogen atom, or an alkyl or aryl group, R8 represents an alkyl or aryl group, X represents Si, Al, Ti or Zr, and m is an integer of 0 to 2.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com