<http://webisa.webdatacommons.org/prov/516198916>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/212796880> .
<http://webisa.webdatacommons.org/212796880>	<http://www.w3.org/ns/prov#value>	"Preferably, the length of the aperture is from 1 ??m to 1000 ??m, for example about 50 ??m." .
<http://webisa.webdatacommons.org/212796880>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/212796880>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .