About: http://webisa.webdatacommons.org/148147803

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 i is the imaginary unit and n is an integer,then in equals 1, i, ???1, or ???i, according to whether the integer n is congruent to 0, 1, 2, or 3 modulo 4.
http://www.w3.org/ns/prov#wasQuotedFrom	explained.at