Complex sentence: In 2013 she and her sister signed a contract with the German side Turbine Potsdam until 30 June 2014, where they became teammate with their countrywomen Maren Mjelde.
Split into simpler sentences: In 2013 she and her sister signed a contract with the German side 1. FFC Turbine Potsdam until 30 June 2014, where they became teammate with their countrywomen Maren Mjelde.