Name the circuit for gt3 alex mortimer bradley ellis
CREATE TABLE table_19400 (
    "Round" real,
    "Circuit" text,
    "Date" text,
    "Length" text,
    "Pole Position" text,
    "GT3 Winner" text,
    "GT4 Winner" text
)
SELECT "Circuit" FROM table_19400 WHERE "GT3 Winner" = 'Alex Mortimer Bradley Ellis'
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: Name the circuit for gt3 alex mortimer bradley ellis ### Input: CREATE TABLE table_19400 (
    "Round" real,
    "Circuit" text,
    "Date" text,
    "Length" text,
    "Pole Position" text,
    "GT3 Winner" text,
    "GT4 Winner" text
) ### Response: SELECT "Circuit" FROM table_19400 WHERE "GT3 Winner" = 'Alex Mortimer Bradley Ellis'