In this task, you need to reverse all words of a given length in the sentence. The number of letters in a word determine its length. For example, the length of the word "apple" is 5.

Sentence: 'a street pole with some signs sitting on top of it'. Reverse all words of length '6' in the given sentence.
a teerts pole with some signs sitting on top of it

Sentence: 'three people with backpacks on skies moving up a hill'. Reverse all words of length '9' in the given sentence.
three people with skcapkcab on skies moving up a hill

Sentence: 'a bunch of zebras surrounded by dirt and rocks'. Reverse all words of length '10' in the given sentence.

a bunch of zebras dednuorrus by dirt and rocks