What was the author/editor/source when the l.a. ranking was 1st?
CREATE TABLE table_19948664_2 (
    author___editor___source VARCHAR,
    ranking_la__2_ VARCHAR
)
SELECT author___editor___source FROM table_19948664_2 WHERE ranking_la__2_ = "1st"
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 was the author/editor/source when the l.a. ranking was 1st? ### Input: CREATE TABLE table_19948664_2 (
    author___editor___source VARCHAR,
    ranking_la__2_ VARCHAR
) ### Response: SELECT author___editor___source FROM table_19948664_2 WHERE ranking_la__2_ = "1st"