| http://www.w3.org/ns/prov#value | - By further studies, they have found a recording sheet in which the recorded image can be erased by applying an amount of heat by a heat roll, a thermal head, a drying oven or a hot stamp, by irradiation with light by a laser or a halogen lamp, or by contacting with alcoholic solvents such as methanol or ethanol, and the erased surface can be recorded again by applying a thermal head or laser, that
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