'U' words - In the Hut

What is in the hut? A mug is in the hut.

But what is in the mug? A bug is in the mug. Yuck!

What is in the hut? A rug is in the hut.

But what is on the rug? Gum is on the rug. Uh-oh!

What is in the hut? A cup is in the hut.

But what is under the cup? A nut is under the cup. Mmm!