CREATE TABLE table_18970 ("Series #" FLOAT, "Season #" FLOAT, "Title" CLOB, "Story by" CLOB, "Teleplay by" CLOB, "Directed by" CLOB, "Original air date" CLOB)

What's the title of the episode written by David Simon?
SELECT "Title" FROM table_18970 WHERE "Teleplay by" = 'David Simon'
SELECT "Title" FROM "table_18970" WHERE "Teleplay by" = 'David Simon'