About: http://webisa.webdatacommons.org/359193400

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 2000, 13% of playgrounds with swings had swing seats that are made of wood, metal or other rigid material, which increases the severity of injury if impact occurs.
http://www.w3.org/ns/prov#wasQuotedFrom	uspirg.org