About: http://webisa.webdatacommons.org/324734161

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	Now chalk is a soft, white, porous sedimentary rock, and a form of limestone.
http://www.w3.org/ns/prov#wasQuotedFrom	s8int.com