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isahttp://webisa.webdatacommons.org/
rdfhttp://www.w3.org/1999/02/22-rdf-syntax-ns#
provhttp://www.w3.org/ns/prov#
xsdhhttp://www.w3.org/2001/XMLSchema#
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isa:191121374
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prov:value
A light is a source which produces light that is visible even though you may not be able to see the source if the light is difussed or the source is obscured.
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n4:com
Subject Item
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