About: http://webisa.webdatacommons.org/68093364

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	They come in a square shape and are made of pigment, various types of clay.
http://www.w3.org/ns/prov#wasQuotedFrom	blogspot.com