Who wrote "yielding"?
CREATE TABLE "table1_30030227_1" (
  "series_num" real,
  "title" text,
  "directed_by" text,
  "written_by" text,
  "original_air_date" text,
  "viewers_million" text
);
SELECT "written_by" FROM "table1_30030227_1" WHERE "title"='\"Yielding\"';