About: http://webisa.webdatacommons.org/201535067

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	Use simple materials like soda bottles, plastic tubing, sand or other ballast.
http://www.w3.org/ns/prov#wasQuotedFrom	pbs.org