About: http://webisa.webdatacommons.org/275853262

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	@MartinArgerami : It is conventional in dealing with certain design matrices in statistics to let $p$ be the number of columns other than one column whose every entry is $1$.
http://www.w3.org/ns/prov#wasQuotedFrom	stackexchange.com