original question: In which olympic event was [1928 Summer Olympics] contested as part of a demonstration sport ?
answer: men's lacrosse
answer type: Olympic event.
auxiliary information: The 1928 Summer Olympics, officially known as the Games of the IX Olympiad, was an international multi-sport event which was celebrated in 1928 in Amsterdam, Netherlands. Amsterdam had bid for the 1920 and 1924 Olympic Games, but had to give way to wartorn Antwerp, Belgium, and Pierre de Coubertin's Paris, respectively. The only other candidate city for the 1928 Games was Los Angeles, which would host the Olympics four years later. The United States Olympic Committee measured the costs and revenue of the 1928 Games in preparation for the 1932 Summer Olympics. The committee reported a total cost of US$1.183 million with receipts of US$1.165 million for a loss of US$18,000‚Äîmuch less than that of the previous Games.
The [1928 Summer Olympics] was contested as part of a demonstration sport in which Olympic event?