| http://www.w3.org/ns/prov#value | - According to a sixth aspect of the invention, there is provided a relay communication system, including: a plurality of LANs connected to a WAN; and a relay server and communication devices connected to each of the plurality of LANs, wherein each communication device is a communication device that can communicate with a communication device in a different LAN through an extra-LAN relay server in t
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