Question: The 2006–07 Four Hills Tournament was a series of ski jumping competitions held in the traditional venues of Oberstdorf, Garmisch-Partenkirchen, Innsbruck and Bischofshofen, located in Germany and Austria, before the tournament started on which date, the World Cup leader was Simon Ammann, a Swiss ski jumper?
Sentence (from "2006–07 Four Hills Tournament"): The tournament was part of the 2006–07 Ski Jumping World Cup and points scored in each of the four competitions also counted towards the World Cup rankings.
Relevant evidence: No