Question: Luca Hischier, is a Swiss ice hockey player currently playing with SC Bern of the National League (NL), internationally Hischier has represented Switzerland at the 2015 World Junior Championships, was the 39th edition of World Junior Ice Hockey Championship, played from December 26, 2014 to which date?
Sentence (from "Luca Hischier"): Internationally Hischier has represented Switzerland at the 2015 World Junior Championships.
Relevant evidence: Yes