What is the total points that an 1951 Entrant alfa romeo spa have?
CREATE TABLE table_70207 (
    "Year" real,
    "Entrant" text,
    "Chassis" text,
    "Engine" text,
    "Points" real
)
SELECT SUM("Points") FROM table_70207 WHERE "Entrant" = 'alfa romeo spa' AND "Year" < '1951'
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 points that an 1951 Entrant alfa romeo spa have? ### Input: CREATE TABLE table_70207 (
    "Year" real,
    "Entrant" text,
    "Chassis" text,
    "Engine" text,
    "Points" real
) ### Response: SELECT SUM("Points") FROM table_70207 WHERE "Entrant" = 'alfa romeo spa' AND "Year" < '1951'