About: http://webisa.webdatacommons.org/346607587

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 pulsed, pulses may be delivered at a fixed or variable frequency of between about 0.01 Hz and about 1 kHz, such as between about 0.1 Hz and 100 Hz, or between about 2 Hz and about 10 Hz.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com