About: http://webisa.webdatacommons.org/421184121

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 United States, bread, cereal and other enriched flour products have been fortified with folic acid (the synthetic form of the vitamin folate) since 1998.
http://www.w3.org/ns/prov#wasQuotedFrom	nih.gov