About: http://webisa.webdatacommons.org/45608768

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	Typically, the shells are filled with a marking material, such as paint, and/or an immobilizing material, such as a noxious chemical.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com