About: http://webisa.webdatacommons.org/33983667

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	By adding bleach, acids, acetone or other strong chemicals you start a chemical reaction that will erode the stone at a greatly accelerated rate.
http://www.w3.org/ns/prov#wasQuotedFrom	civilwarnews.com