CREATE TABLE table_22286 ("No. overall" FLOAT, "No. in series" FLOAT, "Title" CLOB, "Director" CLOB, "Writer" CLOB, "Original air date" CLOB, "Production code" FLOAT)

Who wrote 'episode 4'?
SELECT "Writer" FROM table_22286 WHERE "Title" = 'Episode 4'
SELECT "Writer" FROM "table_22286" WHERE "Title" = 'Episode 4'