Premise: The 1999 IAAF Grand Prix Final was the fifteenth edition of the season-ending competition for the IAAF Grand Prix track and field circuit, organised by the International Association of Athletics Federations. It was held on 11 September at the Olympic Stadium in Munich, Germany.
Hypothesis: The IAFF Grand Prix Final in 1999 was held in Munich, Germany at the Olympic Stadium, and the track and field circuits season ending competition was coming to a close that day, a year still away from the sixteenth edition on that 11 September day.