About: http://webisa.webdatacommons.org/132767137

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	For example, those aberrations that are direction-dependent, such as coma and astigmatism, can be measured in the horizontal and vertical directions, and also in the directions of +/???45 degrees.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com