About: http://webisa.webdatacommons.org/211902905

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	Where substantial power is required, such as for example the devices illustrated in FIGS. 1 and 2, a separate battery pack 19 is often the most convenient way to provide the power that is needed.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com