It seems that the image extractor may have a bug. I think it's cutting 
the URLs when it 
finds characters other than [A-Za-z0-9_/]. Errors are easy to find, just run:

grep /depiction image_en.csv | grep -v 200 | head

(this finds some of the errors, but not all). Here are the first few:

%40Mail http://xmlns.com/foaf/0.1/depiction 
http://upload.wikimedia.org/wikipedia/en/thumb/5/5b/    r
Adam_Meredith   http://xmlns.com/foaf/0.1/depiction 
http://upload.wikimedia.org/wikipedia/commons/thumb/2/26/Plum   r
Airline_Highway http://xmlns.com/foaf/0.1/depiction 
http://upload.wikimedia.org/wikipedia/en/thumb/0/04/61  r
Bir-Hakeim_%28Paris_M%C3%A9tro%29       http://xmlns.com/foaf/0.1/depiction 
http://upload.wikimedia.org/wikipedia/commons/thumb/d/da/Ligne6  r


        If you access Adam_Meredith, for example, the image URL is:

http://upload.wikimedia.org/wikipedia/commons/2/26/Plum%4072.jpg

        The bug happens on both img and depiction fields. The nt file does not 
have this problem. 
Since I'm processing the CSV files instead of the NT ones, please post when you 
find the 
bug if it is affecting only the images file or other files as well...

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