CREATE TABLE table_27383390_2 (shirt_sponsor VARCHAR2, head_coach VARCHAR2)

What sponsor has the head coach Samad Marfavi?
SELECT shirt_sponsor FROM table_27383390_2 WHERE head_coach = "Samad Marfavi"
SELECT "shirt_sponsor" FROM "table_27383390_2" WHERE "Samad Marfavi" = "head_coach"