How many tournaments are also currently known as the hp open?
CREATE TABLE table_73146 (
    "Tournament" text,
    "Also currently known as" text,
    "City" text,
    "Country" text,
    "Court surface" text,
    "Defending champion" text
)
SELECT COUNT("Country") FROM table_73146 WHERE "Also currently known as" = 'HP Open'
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 tournaments are also currently known as the hp open? ### Input: CREATE TABLE table_73146 (
    "Tournament" text,
    "Also currently known as" text,
    "City" text,
    "Country" text,
    "Court surface" text,
    "Defending champion" text
) ### Response: SELECT COUNT("Country") FROM table_73146 WHERE "Also currently known as" = 'HP Open'