a barber	a bus driver	a cook
a fire fighter	a mailman	a nurse
a pilot	a police officer	a student

a teacher	a waiter	a pilot
a fire fighter	a student	a barber
a bus driver	a nurse	a police officer

a barber	a nurse	a teacher
a bus driver	a cook	a pilot
a police officer	a waiter	a doctor

a police officer	a waiter	a cook
a teacher	a bus driver	a pilot
a doctor	a mailman	a fire fighter

a pilot	a cook	a bus driver
a waiter	a fire fighter	a nurse
a barber	a student	a police officer

a fire fighter	a barber	a nurse
a pilot	a student	a doctor
a cook	a police officer	a teacher

a student	a teacher	a doctor
a mailman	a pilot	a police officer
a barber	a bus driver	a fire fighter

a doctor	a waiter	a cook
a mailman	a student	a teacher
a nurse	a barber	a pilot

a cook	a fire fighter	a mailman
a nurse	a waiter	a bus driver
a police officer	a teacher	a barber

a police officer	a waiter	a pilot
a mailman	a cook	a teacher
a student	a barber	a fire fighter

a cook	a doctor	a nurse
a student	a barber	a bus driver
a police officer	a mailman	a waiter

a barber	a nurse	a fire fighter
a doctor	a waiter	a pilot
a mailman	a student	a police officer

a police officer	a fire fighter	a student
a waiter	a teacher	a cook
a pilot	a barber	a mailman

a nurse	a police officer	a waiter
a doctor	a fire fighter	a pilot
a mailman	a student	a bus driver

a cook	a teacher	a waiter
a mailman	a barber	a student
a pilot	a bus driver	a police officer

a bus driver	a waiter	a fire fighter
a doctor	a student	a mailman
a nurse	a teacher	a police officer