user: Question: What was the tournament where Japan was the home team and Mexico was the away team?
Columns: ['Date', 'Tournament', 'Location', 'Home team', 'Score', 'Away team']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['30 June 2011', '2011 FIFA U-17 World Cup', 'Estadio Hidalgo , Pachuca', 'Mexico', '2:0', 'Panama']
SQL:

assistant: SELECT "Tournament" FROM "Table" WHERE "Away team" = 'Mexico' AND "Home team" = 'Japan';