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<http://webisa.webdatacommons.org/257949890>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/prov/54602879>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/257949890> .
<http://webisa.webdatacommons.org/257949890>	<http://www.w3.org/ns/prov#value>	"index of the aberration correction element 21 with respect to the first laser light L1; and k is a natural number." .