Table:
text: List of winners of the Boston Marathon
Victories by nationality
Victories by nationality
Country Mens_Open Womens_Open Mens_Wheelchair Womens_Wheelchair Total
United Kingdom 3 0 0 0 3
Belgium 2 0 0 0 2
Norway 0 2 0 0 2
Colombia 1 0 0 0 1
Denmark 0 0 0 1 1
Greece 1 0 0 0 1
Guatemala 1 0 0 0 1
Ireland 1 0 0 0 1
Italy 1 0 0 0 1
Poland 0 1 0 0 1
Sweden 1 0 0 0 1

Question: If the players from Sweden are in the list of Boston Marathon winners, how many have won the Men's Open?