a policeman
policemen
a boy
boys
a fish
fish
a mouse
mice
a watch
watches
a pizza
pizzas
a bike
bikes
a deer
deer
a woman
women
a salmon
salmon
a dog
dogs
a game
games
a person
people
a bus
buses
a girl
girls
a ball
balls
a child
children
a foot
feet
a book
books
a man
men
a cat
cats
a sheep
sheep