A shell
shells
an apple
apples
A tomato
tomatoes
A loaf
loaves
a mouse
mice
a piano
pianos
A man
men
A video
videos
A woman
women
A person
people
A radio
radios
A photo
photos
A sheep
sheep
a tent
tents
a tooth
teeth
A foot
feet
A leaf
leaves
A child
children
A knife
knives
a palmtree
palmtrees
A drum
drums
A scarf
scarves
a fish
fish
An elf
elves
a key
keys
A goose
geese