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 bird sits atop a post near a boat dock with large boats in the background'. Reverse all words of length '1' in the given sentence.
a bird sits atop a post near a boat dock with large boats in the background

Sentence: 'a man and a woman wearing all black are sitting next to each other on a bench'. Reverse all words of length '4' in the given sentence.
a man and a woman wearing all black are sitting txen to hcae other on a bench

Sentence: 'a dairy queen sign alongside a road with cars going by'. Reverse all words of length '2' in the given sentence.

a dairy queen sign alongside a road with cars going yb