Table: american_football_teams_uk
Columns: team
location
years_in_senior_adult_league
2013_bafa_adult_division
2013_bafa_adult_flag_division
2013_bafa_junior_division
other_teams

Question: What is the 2013 BAFA adult flag division in Aylesbury?
SQL: SELECT "2013_bafa_adult_flag_division" FROM american_football_teams_uk WHERE "location" = 'aylesbury'

Question: What is the 2013 BAFA junior division with a 2013 BAFA adult division in national central in the Birkenhead location?
SQL: SELECT "2013_bafa_junior_division" FROM american_football_teams_uk WHERE "2013_bafa_adult_division" = 'national central' AND "location" = 'birkenhead'