About: http://webisa.webdatacommons.org/239146992

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 addition, problems at the time of pasting the prisms together include angular misalignment, unevenness and bumpiness in the surfaces of light entry and exit, and other problems.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com