About: http://webisa.webdatacommons.org/169575646

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	Before the 20 th century, ladders were mainly made of wood, but obvious problems came in the form of rotting and decay, as well as conductivity while wet.
http://www.w3.org/ns/prov#wasQuotedFrom	guide4home.com