About: http://webisa.webdatacommons.org/144789306

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	See ../Colors (ggplot2) for more information on colors, and ../Shapes and line types for information on shapes and line types.
http://www.w3.org/ns/prov#wasQuotedFrom	cookbook-r.com