| http://www.w3.org/ns/prov#value | - Incidently, the code in a positioning field respectively comprises a group of lines of at least two rectangular lines and a rectangular interspace lying in between, the lines and interspaces differing optically from one another, for example such as light and dark, and their longitudinal direction running at right angles to the center line of the code field over the entire extent of the latter.
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