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

a waiter	a student	a doctor
a nurse	a teacher	a cook
a pilot	a mailman	a fire fighter

a cook	a mailman	a waiter
a pilot	a bus driver	a doctor
a fire fighter	a student	a barber

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

a doctor	a bus driver	a pilot
a student	a nurse	a mailman
a cook	a teacher	a fire fighter

a nurse	a cook	a mailman
a doctor	a teacher	a barber
a bus driver	a fire fighter	a waiter

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

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

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

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

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

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

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

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

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

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