About: http://webisa.webdatacommons.org/295555151

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	green vegetables, such as broccoli and kale (Swiss chard, spinach, and rhubarb are not listed because the body cannot use their calcium content - they contain substances called oxalates, which inhibit calcium absorption)
http://www.w3.org/ns/prov#wasQuotedFrom	ecommunity.com