About: http://webisa.webdatacommons.org/287284248

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	Chemicals such as sulphur dioxide and nitrogen oxides from air pollution react with the stone to make it dissolve.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com