About: http://webisa.webdatacommons.org/35459744

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	It is characteristic of a periodic wave, no matter how complex, that, after a certain time interval known as the period, its form is a repetition of what has gone before.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com