| http://www.w3.org/ns/prov#value | - In other words, one of the important inventions disclosed in the present specification is an information processing system provided with a camera and a microphone, wherein the degree of tiredness of the user is estimated by obtaining the bloodshot degree of the eyeballs of the user from image data taken in by the camera, and wherein if this exceeds a certain fixed value, the actual image data of t
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