How many companies named cenovus energy?
CREATE TABLE table_2973 (
    "April 2013 Cum. Rank" real,
    "Name" text,
    "Rank (all) 2012" real,
    "Rank (all) 2013" real,
    "2013 Rank (oil companies)" text,
    "2013 rev (bil. USD )" text,
    "2013 Profit (mil. USD )" real,
    "Assets (bil. USD )" text,
    "Market cap March 15 (mil. USD )" real
)
SELECT COUNT("Rank (all) 2013") FROM table_2973 WHERE "Name" = 'Cenovus Energy'
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 companies named cenovus energy? ### Input: CREATE TABLE table_2973 (
    "April 2013 Cum. Rank" real,
    "Name" text,
    "Rank (all) 2012" real,
    "Rank (all) 2013" real,
    "2013 Rank (oil companies)" text,
    "2013 rev (bil. USD )" text,
    "2013 Profit (mil. USD )" real,
    "Assets (bil. USD )" text,
    "Market cap March 15 (mil. USD )" real
) ### Response: SELECT COUNT("Rank (all) 2013") FROM table_2973 WHERE "Name" = 'Cenovus Energy'