How many are named River Esk
CREATE TABLE table_142159_1 (
    built VARCHAR,
    name VARCHAR
)
SELECT COUNT(built) FROM table_142159_1 WHERE name = "River Esk"
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 are named River Esk ### Input: CREATE TABLE table_142159_1 (
    built VARCHAR,
    name VARCHAR
) ### Response: SELECT COUNT(built) FROM table_142159_1 WHERE name = "River Esk"