What is total number of years that has genre of first-person shooter?
CREATE TABLE table_name_50 (
    year INTEGER,
    genre VARCHAR
)
SELECT SUM(year) FROM table_name_50 WHERE genre = "first-person shooter"
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: What is total number of years that has genre of first-person shooter? ### Input: CREATE TABLE table_name_50 (
    year INTEGER,
    genre VARCHAR
) ### Response: SELECT SUM(year) FROM table_name_50 WHERE genre = "first-person shooter"