About: http://webisa.webdatacommons.org/453909669

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 parts of South America, vitamin-A deficiency is a serious health problem, especially among children.
http://www.w3.org/ns/prov#wasQuotedFrom	gmatclub.com