About: http://webisa.webdatacommons.org/203317321

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	As they decline in strength, from age, sickness, or other cause, they retrograde in the scale, and proportionately less labor is required of them.
http://www.w3.org/ns/prov#wasQuotedFrom	unc.edu