| http://www.w3.org/ns/prov#value | - Ordinarily, the witness should not be allowed to look at the set of photos more than three times.The witness should not be told, however, that there is a limit to the number of times the photos will be shown.The witness may take as long as needed to view each photo.Even if a witness identifies a particular photo before looking at the whole set, the witness should view all of the photos.During the
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