how many crew had u15 3rd iv being bgs and u15 1st iv being acgs and open 1st viii being acgs
create table table_11318462_5 (crew varchar, open_1st_viii varchar, u15_3rd_iv varchar, u15_1st_iv varchar, PRIMARY KEY (crew))
select count(crew) from table_11318462_5 where u15_3rd_iv = "bgs" and u15_1st_iv = "acgs" and open_1st_viii = "acgs"