This is my cat.

This cat is mine.

This is your hat.

This hat is yours.

This is his bag.

This bag is his.

This is her dog.

This dog is hers.

This is our school.

This school is ours.

This is their tiger.

This tiger is theirs.

This is my book.

This book is mine.

This is your lion.

This lion is yours.

This is his coffee.

This coffee is his.

This is her snake.

This snake is hers.

This is our town.

This town is ours.

This is their chicken.

This chicken is theirs.