About: http://webisa.webdatacommons.org/90073536

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	noun A crystalline compound that is found especially in tea and coffee plants and is a stimulant of the central nervous system.An alkaloid, 1,3,7-trimethylxanthine; chemical formula: C8H10N4O2
http://www.w3.org/ns/prov#wasQuotedFrom	oxforddictionaries.com