About: http://webisa.webdatacommons.org/394261766

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	In some professions, such as the military, firefighting and mountain rescue, the packs may equal as much as 60 percent of adult body weight.
http://www.w3.org/ns/prov#wasQuotedFrom	sciencedaily.com