About: http://webisa.webdatacommons.org/344524951

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	Because it is dark, dark matter has been notoriously hard to detect; it does not emit or reflect radiation such as light or heat, and it can have only the feeblest of interactions with itself and ordinary matter.
http://www.w3.org/ns/prov#wasQuotedFrom	seti.org