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 backyard with a chair covered in snow'. Reverse all words of length '4' in the given sentence.
a backyard htiw a chair covered in wons

Sentence: 'three planes being serviced at the airport on a sunny day'. Reverse all words of length '2' in the given sentence.
three planes being serviced ta the airport no a sunny day

Sentence: 'a pretty brunette dressed with a blouse and a bow tie'. Reverse all words of length '4' in the given sentence.

a pretty brunette dressed htiw a blouse and a bow tie