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<http://webisa.webdatacommons.org/prov/249871564>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/126093831> .
<http://webisa.webdatacommons.org/126093831>	<http://www.w3.org/ns/prov#value>	"FIG. 2 is a plan view showing the arrangement of a planar wave guide type optical amplifier of the present invention;" .
<http://webisa.webdatacommons.org/126093831>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .