which ship had the highest estimated cost to build ?
CREATE TABLE table_204_568 (
    id number,
    "pennant" text,
    "name" text,
    "hull builder" text,
    "ordered" text,
    "laid down" text,
    "launched" text,
    "accepted into service" text,
    "commissioned" text,
    "est. building cost" text,
    "fate" text
)
SELECT "name" FROM table_204_568 ORDER BY "est. building cost" DESC LIMIT 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: which ship had the highest estimated cost to build ? ### Input: CREATE TABLE table_204_568 (
    id number,
    "pennant" text,
    "name" text,
    "hull builder" text,
    "ordered" text,
    "laid down" text,
    "launched" text,
    "accepted into service" text,
    "commissioned" text,
    "est. building cost" text,
    "fate" text
) ### Response: SELECT "name" FROM table_204_568 ORDER BY "est. building cost" DESC LIMIT 1