About: http://webisa.webdatacommons.org/155050381

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	The failure to find any modification of gravity that works well is just one of many reasons most physicists and astonomers are convinced that there is dark matter.
http://www.w3.org/ns/prov#wasQuotedFrom	profmattstrassler.com