what is the total of the first two core diameters ?
CREATE TABLE table_204_828 (
    id number,
    "whitworth size (in)" number,
    "core diameter (in)" number,
    "threads per inch" number,
    "pitch (in)" number,
    "tapping drill size" text
)
SELECT SUM("core diameter (in)") FROM table_204_828 WHERE id <= 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 the total of the first two core diameters ? ### Input: CREATE TABLE table_204_828 (
    id number,
    "whitworth size (in)" number,
    "core diameter (in)" number,
    "threads per inch" number,
    "pitch (in)" number,
    "tapping drill size" text
) ### Response: SELECT SUM("core diameter (in)") FROM table_204_828 WHERE id <= 2