About: http://webisa.webdatacommons.org/11767883

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	where X1-X10 are independently hydrogen or halogen, such as fluorine, chlorine, bromine or iodine and R is carbon, silicon or germanium.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es