Table: police_aircraft
Columns: aircraft
origin
role
registration
number

Question: What is the role of the aircraft that has a registration of s5-hpg s5-hpc?
SQL: SELECT "role" FROM police_aircraft WHERE "registration" = 's5-hpg s5-hpc'

Question: What is the country of origin of the aircraft with a registration s5-hpb?
SQL: SELECT "origin" FROM police_aircraft WHERE "registration" = 's5-hpb'

Question: What is the role of the aircraft that originates from the European Union?
SQL: SELECT "role" FROM police_aircraft WHERE "origin" = 'european union'

Question: What is the role of the aircraft that has a registration of s5-hpb?
SQL: SELECT "role" FROM police_aircraft WHERE "registration" = 's5-hpb'