Find the last names of the teachers that teach fifth grade.
CREATE TABLE list (
    lastname text,
    firstname text,
    grade number,
    classroom number
)

CREATE TABLE teachers (
    lastname text,
    firstname text,
    classroom number
)
SELECT DISTINCT T2.lastname FROM list AS T1 JOIN teachers AS T2 ON T1.classroom = T2.classroom WHERE grade = 5
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: Find the last names of the teachers that teach fifth grade. ### Input: CREATE TABLE list (
    lastname text,
    firstname text,
    grade number,
    classroom number
)

CREATE TABLE teachers (
    lastname text,
    firstname text,
    classroom number
) ### Response: SELECT DISTINCT T2.lastname FROM list AS T1 JOIN teachers AS T2 ON T1.classroom = T2.classroom WHERE grade = 5