| http://www.w3.org/ns/prov#value | - But when the marking is not so dark that a portion of the marking is recognized as being a black portion, it is in some cases more convenient to set the level of the signal h to the low level, such as the case where a desired area of the document is relatively small and more easily designated by entering the marking over the entire desired area rather than encircling the desired region by the mark
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