adult
animal
antiterrorist
armed
attack
background
black
breed
brown
check
china
crime
customs
cute
dog
domestic
duty
force
friend
friendship
fur
furry
german
germany
grey
guard
head
inspection
leash
loyal
mammal
nature
obedience
pedigree
pedigreed
pet
police
portrait
protection
purebred
security
sheepdog
shepherd
smell
terrorism
terrorist
tongue
training
white
working