About: http://webisa.webdatacommons.org/75974265

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	These independent variables (concomitant variables, covariates, or prognostic factors) can be either discrete, such as sex or race, or continuous, such as age or temperature.
http://www.w3.org/ns/prov#wasQuotedFrom	stattutorials.com