About: http://webisa.webdatacommons.org/4672787

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	A first disadvantage is that normal operation may be disturbed by dirt, such as dust, material remainders and such like which end up in the apparatus in front of the optical eye.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com