sentences:  On 16 May 1931, the Supreme Court found Holmenkolbanen guilty in the lawsuit regarding the real estate damage, with the compensation payments making the company insolvent.This resulted in Aker Municipality purchasing the majority of Holmenkolbanen, and merged the Røa Line and Sognsvann Line into the company.In 1939, Bærumsbanen started construction of a branch from the Lilleaker Line to Majorstuen.