About: http://webisa.webdatacommons.org/18721118

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	A litmus test is a piece of paper that is dipped in a solution to test whether the liquid is basic or acidic.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com