Singular
the trick of the clown
What is the clown's trick
the teeth of the wolves
What is the wolves' teeth
foot's
What is singular
The owner of the dogs walked them in the park.
What is The dogs' owner walked them in the park.
the curtains of the window
What is the window's curtains
the bottles of the babies
What is the babies' bottles
moose's
What is singular/plural
The volcanoes of Hawaii are active.
What is Hawaii's volcanoes are active.
the homework of the child
What is the child's homework
the cheese of the mice
What is the mice's cheese
women's
What is plural
The hero knew about the plans of the villain.
What is The hero knew about the villain's plans.
the party of the man
What is the man's party
the colors of the leaves
What is the leaves' colors
ladies'
What is plural
The koalas of Australia are adorable.
What is Australia's koalas are adorable.
the lava of the volcano
What is the volcano's lava
the tests of the children
What is the children's tests
neighbor's
What is singular
Many people admired the hard work of the principal.
What is Many people admired the principal's hard work.