How many stamps were designed for the theme of XII Summit de la Francophonie?
CREATE TABLE table_11900773_6 (
    design VARCHAR,
    theme VARCHAR
)
SELECT COUNT(design) FROM table_11900773_6 WHERE theme = "XII Summit de la Francophonie"
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 stamps were designed for the theme of XII Summit de la Francophonie? ### Input: CREATE TABLE table_11900773_6 (
    design VARCHAR,
    theme VARCHAR
) ### Response: SELECT COUNT(design) FROM table_11900773_6 WHERE theme = "XII Summit de la Francophonie"