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100

bus

buses

100

pencil

pencils

100
pen

pens

100

bag

bags

200

fox

foxes

200

sky

skies

200

book

books

200

cat

cats

300

baby

babies

300

person

people

300

wife

wives

300

toy

toys

400

tomato

tomatoes

400

foot

feet

400

fish

fish

400

sheep

sheep

500

child

children

500

man

men

500

woman

women

500

tooth

teeth