About: http://webisa.webdatacommons.org/59236247

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	Cleaning tools such as mops, buckets and dusters took years to slowly evolve, and effective and efficient cleaning methods took years to develop as well.
http://www.w3.org/ns/prov#wasQuotedFrom	cmmonline.com