CREATE TABLE table_19961 ("No. in season" FLOAT, "No. disc" FLOAT, "Title" TEXT, "Directed by" TEXT, "Written by" TEXT, "Original air date" TEXT)

Who wrote episode 11, of which was directed by Will Waring?
SELECT "Written by" FROM table_19961 WHERE "Directed by" = 'Will Waring' AND "No. in season" = '11'
SELECT "Written by" FROM "table_19961" WHERE "Directed by" = 'Will Waring' AND "No. in season" = '11'