About: http://webisa.webdatacommons.org/298464106

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	Selected areas can be injected with a material, such as a chemical precursor or reactant, that obstructs or clogs the areas.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com