How many teams have a combination classification of Alejandro Valverde and a Points classification of Alessandro Petacchi?
CREATE TABLE table_15059783_1 (
    team_classification VARCHAR,
    combination_classification VARCHAR,
    points_classification VARCHAR
)
SELECT COUNT(team_classification) FROM table_15059783_1 WHERE combination_classification = "Alejandro Valverde" AND points_classification = "Alessandro Petacchi"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many teams have a combination classification of Alejandro Valverde and a Points classification of Alessandro Petacchi? ### Input: CREATE TABLE table_15059783_1 (
    team_classification VARCHAR,
    combination_classification VARCHAR,
    points_classification VARCHAR
) ### Response: SELECT COUNT(team_classification) FROM table_15059783_1 WHERE combination_classification = "Alejandro Valverde" AND points_classification = "Alessandro Petacchi"