About: http://webisa.webdatacommons.org/29583781

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	ns in terms of climate, soil, weeds and pests, most notably sub-Saharan Africa, and where the consumption of sta- ples was more diversified so as to include millet, sorghum, and cassava, of which improved varieties would come much later.
http://www.w3.org/ns/prov#wasQuotedFrom	slideshare.net