CREATE TABLE table_19286 ("Series" TEXT, "Main presenter" TEXT, "Co-presenter" TEXT, "Comedian" TEXT, "UK co-presenter" TEXT)

Who is the UK co-presenters that have Joe Swash as a co-presenter of the series Eleven (2011)?
SELECT "UK co-presenter" FROM table_19286 WHERE "Co-presenter" = 'Joe Swash' AND "Series" = 'Eleven (2011)'
SELECT "UK co-presenter" FROM "table_19286" WHERE "Co-presenter" = 'Joe Swash' AND "Series" = 'Eleven (2011)'