premise: The Melodi Grand Prix Junior 2012 was Norway's eleventh national Melodi Grand Prix Junior for young singers aged 8 to 15. It was held in Oslo Spektrum, Oslo, Norway and broadcast live Norwegian Broadcasting Corporation (NRK). It was hosted by Margrethe Røed and Tooji, the winner of Norwegian Melodi Grand Prix 2012.
hypothesis: Tooji has won multiple Norwegian Melodi Grand Prixs.
reason: The system only knows of the 2012 winner.