<http://webisa.webdatacommons.org/prov/484186493> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/362684576> . <http://webisa.webdatacommons.org/362684576> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/prov/386385484> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/362684576> . <http://webisa.webdatacommons.org/362684576> <http://www.w3.org/ns/prov#value> "Moreover, the compatibility of eyewear with night vision goggles, gas masks, aiming devices and other systems is a constant source of concern in terms of safety as well as performance of duties." . <http://webisa.webdatacommons.org/362684576> <http://www.w3.org/ns/prov#wasQuotedFrom> <seewithlasik.com> .