What is the lowest population for the neighborhood with the color blue that commenced its construction before 1987?
CREATE TABLE table_6865 (
    "Number on map" real,
    "Name" text,
    "Colour" text,
    "Construction commenced" real,
    "Population" real
)
SELECT MIN("Population") FROM table_6865 WHERE "Colour" = 'blue' AND "Construction commenced" < '1987'
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 lowest population for the neighborhood with the color blue that commenced its construction before 1987? ### Input: CREATE TABLE table_6865 (
    "Number on map" real,
    "Name" text,
    "Colour" text,
    "Construction commenced" real,
    "Population" real
) ### Response: SELECT MIN("Population") FROM table_6865 WHERE "Colour" = 'blue' AND "Construction commenced" < '1987'