| http://www.w3.org/ns/prov#value | - In embodiments, such as in FIG. 17, the authoring computer 5010 is provided with an Ethernet connection, such as via an Ethernet switch 5102, so that it can communicate with other Ethernet-based devices, optionally including the light system engine 5008, a light system itself (enabled for receiving instructions from the authoring computer 5010), or a power/data supply (PDS) 1758 that supplies powe
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