About: http://webisa.webdatacommons.org/208392016

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	These signs are chosen by the editors of Road Sign Math in conjunction with a voting panel to identify signs that are special for either their use of math, elegance or other reasons.
http://www.w3.org/ns/prov#wasQuotedFrom	factbites.com