| http://www.w3.org/ns/prov#value | - For example, the illustrations 210 a and 210 b proximate the messenger hub 14 provide the installer with visual indications of how the messenger hub 14 is to be installed (i.e., plugged into a desired wall outlet) and how the switch 16 a is to be used (i.e., an electrical device, such as a lamp, is plugged into the power outlet portion 74).
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