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