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 dog standing on top of a dirt field next to a frisbee'. Reverse all words of length '4' in the given sentence.
a dog standing on top of a trid field txen to a frisbee

Sentence: 'many pairs of open scissors sit on top of metal poles'. Reverse all words of length '4' in the given sentence.
ynam pairs of nepo scissors sit on top of metal poles

Sentence: 'three different size bathroom urinals next to each other'. Reverse all words of length '8' in the given sentence.

three different size moorhtab urinals next to each other