How many regions have a capital of matanzas and a 2005 population under 670427?
CREATE TABLE table_51926 (
    "Province" text,
    "Capital" text,
    "Population (2005)" real,
    "Population (%)" real,
    "Area (km\u00b2)" real,
    "Area (%)" real,
    "Density" real
)
SELECT COUNT("Area (km\u00b2)") FROM table_51926 WHERE "Capital" = 'matanzas' AND "Population (2005)" < '670427'
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: How many regions have a capital of matanzas and a 2005 population under 670427? ### Input: CREATE TABLE table_51926 (
    "Province" text,
    "Capital" text,
    "Population (2005)" real,
    "Population (%)" real,
    "Area (km\u00b2)" real,
    "Area (%)" real,
    "Density" real
) ### Response: SELECT COUNT("Area (km\u00b2)") FROM table_51926 WHERE "Capital" = 'matanzas' AND "Population (2005)" < '670427'