<prompt> Pedzisa mutsara unotevera:  <response>: Kufashukira kweNorth Sea kwa1953, chipingamupinyi chemafashamo murwizi IJssel chakaratidza kuva chisina kukwana. Naizvozvo muna 1954 kuvakwa kwakatanga pachikumbaridzo chitsva chokudzivisa dutu, kugadzwa kwokutanga kweDelta Works. 