About: http://webisa.webdatacommons.org/270008281

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	In this section, SIGN means any device, flag, light, figure, picture, letter, word, message, symbol, plaque, poster, or other thing that is designed, used, or intended to advertise or inform.
http://www.w3.org/ns/prov#wasQuotedFrom	douglaslucas.com