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ADDS DATE - In this Wednesday, July 25, 2012 photo released by the Korean Central News Agency (KCNA) and distributed in Tokyo by the Korea News Service Thursday, July 26, 2012, North Korean leader Kim Jong Un, center, accompanied by his wife Ri Sol Ju, left, touches a display as they inspect the Rungna People's Pleasure Ground in Pyongyang. (AP Photo/Korean Central News Agency via Korea News Service) JAPAN OUT UNTIL 14 DAYS AFTER THE DAY OF TRANSMISSION

North Korea's 'first lady'

North Korea

may soon witness the birth of the fourth generation of its hereditary

dictatorship as television pictures showed that the wife of the

country's leader appeared to be heavily pregnant.