How many locomotives have a livery that is highland railway green
CREATE TABLE table_20331 (
    "No." real,
    "Name" text,
    "Livery" text,
    "Locomotive type" text,
    "Wheel Arrangement" text,
    "Builder" text,
    "Year built" real,
    "Status" text
)
SELECT COUNT("Name") FROM table_20331 WHERE "Livery" = 'Highland Railway green'
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 locomotives have a livery that is highland railway green ### Input: CREATE TABLE table_20331 (
    "No." real,
    "Name" text,
    "Livery" text,
    "Locomotive type" text,
    "Wheel Arrangement" text,
    "Builder" text,
    "Year built" real,
    "Status" text
) ### Response: SELECT COUNT("Name") FROM table_20331 WHERE "Livery" = 'Highland Railway green'