What is the sum of Points, when Year is after 1959, and when Class is 250cc?
CREATE TABLE table_9507 (
    "Year" real,
    "Class" text,
    "Team" text,
    "Points" real,
    "Wins" real
)
SELECT SUM("Points") FROM table_9507 WHERE "Year" > '1959' AND "Class" = '250cc'
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 sum of Points, when Year is after 1959, and when Class is 250cc? ### Input: CREATE TABLE table_9507 (
    "Year" real,
    "Class" text,
    "Team" text,
    "Points" real,
    "Wins" real
) ### Response: SELECT SUM("Points") FROM table_9507 WHERE "Year" > '1959' AND "Class" = '250cc'