About: http://webisa.webdatacommons.org/454833605

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	if you are doing a study as to whether men or women are more likely to show up to your experiment, sex of subject would be a Measurement Variable.
http://www.w3.org/ns/prov#wasQuotedFrom	upenn.edu