| http://www.w3.org/ns/prov#value | - Input/output device 280 may also include any conventional mechanism that outputs information to the operator, including a display, a printer, a speaker, etc. [0030] Returning to FIG. 1, each user device 130 may include any type of computer system, such as a personal computer (PC), laptop, etc., that is capable of transmitting and receiving voice and/or data communications via network 110.
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