CREATE TABLE table_19835 ("Stage" FLOAT, "Winner" CLOB, "General classification" CLOB, "Points classification" CLOB, "Mountains classification" CLOB, "Combination classification" CLOB, "Team classification" CLOB)

How many teams have a combination classification of Alejandro Valverde and a Points classification of Alessandro Petacchi?
SELECT COUNT("Team classification") FROM table_19835 WHERE "Combination classification" = 'Alejandro Valverde' AND "Points classification" = 'Alessandro Petacchi'
SELECT COUNT("Team classification") FROM "table_19835" WHERE "Combination classification" = 'Alejandro Valverde' AND "Points classification" = 'Alessandro Petacchi'