tell the competitions where the mean is 1
CREATE TABLE table_18807 (
    "Rank by average" real,
    "Competition finish" real,
    "Couple" text,
    "Total" real,
    "Number of dances" real,
    "Average" text
)
SELECT "Average" FROM table_18807 WHERE "Number of dances" = '1'
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: tell the competitions where the mean is 1 ### Input: CREATE TABLE table_18807 (
    "Rank by average" real,
    "Competition finish" real,
    "Couple" text,
    "Total" real,
    "Number of dances" real,
    "Average" text
) ### Response: SELECT "Average" FROM table_18807 WHERE "Number of dances" = '1'