What is Mass, when Designation is Prognoz 2?
CREATE TABLE table_12856 (
    "Designation" text,
    "Launch date/time ( GMT )" text,
    "Mass" text,
    "Apogee" text,
    "Inclination" text
)
SELECT "Mass" FROM table_12856 WHERE "Designation" = 'prognoz 2'
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: What is Mass, when Designation is Prognoz 2? ### Input: CREATE TABLE table_12856 (
    "Designation" text,
    "Launch date/time ( GMT )" text,
    "Mass" text,
    "Apogee" text,
    "Inclination" text
) ### Response: SELECT "Mass" FROM table_12856 WHERE "Designation" = 'prognoz 2'