Table schema:
CREATE TABLE table_14345690_15 (uk_co_presenter VARCHAR, co_presenter VARCHAR, series VARCHAR)

Question: Who is the UK co-presenters that have Joe Swash as a co-presenter of the series Eleven (2011)?
SQL: SELECT uk_co_presenter FROM table_14345690_15 WHERE co_presenter = "Joe Swash" AND series = "Eleven (2011)"