user: Question: Which 2005/ 06 has a 2011/ 12 of Ranking Tournaments
Columns: ['2005/ 06', '2006/ 07', '2007/ 08', '2009/ 10', '2010/ 11', '2011/ 12', '2012/ 13']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['UR', 'UR', 'UR', '71', 'UR He was an amateur.', 'UR', 'UR']
SQL:

assistant: SELECT "2005/ 06" FROM "Table" WHERE "2011/ 12" = 'Ranking Tournaments';