Question: Which Combination classification has Points classification of Daniele Bennati, and a Team classification of Quick Step?
SQL: SELECT "Combination classification" FROM "2-15294880-2" WHERE "Points classification" = 'Daniele Bennati' AND "Team classification" = 'Quick Step';

Question: Which Mountains classification has a Team classification of Quick Step?
SQL: SELECT "Mountains classification" FROM "2-15294880-2" WHERE "Team classification" = 'Quick Step';

Question: Which Team classification has a Combination classification of Egoi Martínez, and a Winner of Tom Boonen?
SQL: SELECT "Team classification" FROM "2-15294880-2" WHERE "Combination classification" = 'Egoi Martínez' AND "Winner" = 'Tom Boonen';

Question: Which Combination classification has a Stage of 14?
SQL: SELECT "Combination classification" FROM "2-15294880-2" WHERE "Stage" = '14';

Question: Which Mountains classification has a General classification of Egoi Martínez, and a Stage of 9?
SQL: SELECT "Mountains classification" FROM "2-15294880-2" WHERE "General classification" = 'Egoi Martínez' AND "Stage" = '9';

Question: Which Mountains classification has Points classification of not awarded?
SQL: SELECT "Mountains classification" FROM "2-15294880-2" WHERE "Points classification" = 'not awarded';