What is the couples name where the average is 15.9?
CREATE TABLE table_73132 (
    "Rank by average" real,
    "Place" real,
    "Couple" text,
    "Number of Dances" real,
    "Total Points" text,
    "Average" text
)
SELECT "Couple" FROM table_73132 WHERE "Average" = '15.9'
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 the couples name where the average is 15.9? ### Input: CREATE TABLE table_73132 (
    "Rank by average" real,
    "Place" real,
    "Couple" text,
    "Number of Dances" real,
    "Total Points" text,
    "Average" text
) ### Response: SELECT "Couple" FROM table_73132 WHERE "Average" = '15.9'