About: http://webisa.webdatacommons.org/326674862

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	These materials mostly can be purchased at a grocery store and items are shaded in the chart if they are a one???time purchase.
http://www.w3.org/ns/prov#wasQuotedFrom	nsta.org