Question: What is an annual Christmas tradition celebrated in towns across Europe: in France, Germany, and Austria? 
Sentence (from "Tió de Nadal"): The Tió de Nadal (] , ] ; meaning in English "Christmas Log"), also known simply as Tió ("Trunk" or "Log", a big piece of cut wood) or Tronca ("Log"), is a character in Catalan mythology relating to a Christmas tradition widespread in Catalonia and some regions of Aragon.
Relevant evidence: No