What type of structure is there at the American Tower Christmas?
CREATE TABLE table_45248 (
    "Name" text,
    "Pinnacle height" text,
    "Structure type" text,
    "Main use" text,
    "Country" text,
    "Town" text
)
SELECT "Structure type" FROM table_45248 WHERE "Name" = 'american tower christmas'
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 type of structure is there at the American Tower Christmas? ### Input: CREATE TABLE table_45248 (
    "Name" text,
    "Pinnacle height" text,
    "Structure type" text,
    "Main use" text,
    "Country" text,
    "Town" text
) ### Response: SELECT "Structure type" FROM table_45248 WHERE "Name" = 'american tower christmas'