Abstract
From the background information supplied by the inventors, news correspondents o btained the followingquote: “Architecture, engineering, and construction (AEC) industries actively use drawings to representbuilding designs. A large number o f drawing sheets are usually needed to represent various aspects of abuilding. Drawing sheets typically include a title box or similar section containing infor mation used foridentifying a particular drawing, which may be important to disc ern the context of the drawing depictedon the sheet. For example, the title box of a drawing sheet may include a title and a number, which maybe indicative of the content displayed on the drawing sheet.
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