Question: Who was relegated to league if Barking Birmingham & Solihull Stourbridge were relegated from league?
Schema: create table table_23927423_4 (relegated_to_league varchar, relegated_from_league varchar, PRIMARY KEY (relegated_to_league))
SQL: select relegated_to_league from table_23927423_4 where relegated_from_league = "barking birmingham & solihull stourbridge"