CREATE TABLE table_27573848_18 (points_classification VARCHAR2, general_classification VARCHAR2, mountains_classification VARCHAR2)

If the mountains classification is Mathias Frank, and the General Classification is Fabian Cancellara, what is the Points classification?
SELECT points_classification FROM table_27573848_18 WHERE general_classification = "Fabian Cancellara" AND mountains_classification = "Mathias Frank"
SELECT "points_classification" FROM "table_27573848_18" WHERE "Fabian Cancellara" = "general_classification" AND "Mathias Frank" = "mountains_classification"