So far the group has tested touch screens, mobile phones running the Windows Mobile and Android platforms, speech input and output devices and an ordinary domestic TV set with a simplified remote control to run the UCH.

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Initially he is using transcripts of conversations to train his software, but once it is able to handle queries reliably, he plans to add speech-recognition and speech-synthesis systems to handle the input and output.

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Disproving the charge, Podhoretz writes, required "literally printing out the 2 million words that had appeared on this site in 2008 and sending them in many boxes to the IRS" to show that the Lieberman speech was "essentially a part per million" of Commentary's output.

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