German Chancellor Angela Merkel (L) is sworn-in by President of German lower house of Parliament Norbert Lammert during a meeting of Bundestag, Germany's lower house of parliament, in Berlin, Germany on Dec. 17, 2013. Angela Merkel was re-elected in a vote in the lower house of parliament on Tuesday for a third term, and her coalition government will be sworn into office to rule Europe's biggest economy for the next four years. [Xinhua]