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UNITED ARAB EMIRATES - JULY 06: The exterior of the Palmmarine and Exomos showroom, which builds luxury submarines as well as other marine vessels, is seen in the Jebel Ali Free Zone, in Dubai, United Arab Emirates, on Friday, July 7, 2007. The luxury-submarine business is sometimes hard to fathom. "If you can find my submarine, it's yours,'' says Russian oil billionaire Roman Abramovich. And that's all the reclusive owner of the Chelsea Football Club has to say. (Photo by Charles Crowell/Bloomberg via Getty Images)

UNITED ARAB EMIRATES - JULY 06:  The exterior of the Palmmarine and Exomos showroom, which builds luxury submarines as well as other marine vessels, is seen in the Jebel Ali Free Zone, in Dubai, United Arab Emirates, on Friday, July 7, 2007. The luxury-submarine business is sometimes hard to fathom. "If you can find my submarine, it's yours,'' says Russian oil billionaire Roman Abramovich. And that's all the reclusive owner of the Chelsea Football Club has to say.  (Photo by Charles Crowell/Bloomberg via Getty Images)