cat
cats
thief
thieves
school
schools
person
people
mouse
mice
chief
chiefs
sheep
sheep
child
children
tooth
teeth
foot
feet
wife
wives
toy
toys
chef
chefs
watch
watches
tomato
tomatoes
radio
radios
shelf
shelves
half
halves
photo
photos
man
men
city
cities
deer
deer
woman
women