About: http://webisa.webdatacommons.org/353267845

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 Mona Lisa this is most evident in the contrast between face and dark background.In this period Leonardo extended his studies into engineering, science and other subjects.
http://www.w3.org/ns/prov#wasQuotedFrom	biographyonline.net