About: http://webisa.webdatacommons.org/303217282

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	The MUTCD 2000 states that the HILL sign (W7-1a) is intended for use in advance of a downgrade where the length, percent of grade, horizontal curvature, or other physical features require special precautions on the part of road users.
http://www.w3.org/ns/prov#wasQuotedFrom	dot.gov