Table: mariana_duque_grand_slam
Columns: tournament
2007
2008
2009
2010
2011
2012

Question: Name the 2010 for 2007 of a and 2012 of a
SQL: SELECT "2010" FROM mariana_duque_grand_slam WHERE "2007" = 'a' AND "2012" = 'a'

Question: Name the 2008 for 2012 being a and tournament of australian open
SQL: SELECT "2008" FROM mariana_duque_grand_slam WHERE "2012" = 'a' AND "tournament" = 'australian open'

Question: Name the tournament for 2012 grand slam tournaments
SQL: SELECT "tournament" FROM mariana_duque_grand_slam WHERE "2012" = 'grand slam tournaments'