About: http://webisa.webdatacommons.org/197742895

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	With the two vectors dx1,dy1 and dx2,dy2 at a common origin, if the dx2,dy2 is above the dx1,dy1 line then it is a turn to the left, or below is a turn to the right
http://www.w3.org/ns/prov#wasQuotedFrom	cpan.org