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.

[EX Q]: Sentence: 'a large long train on a steel track'. Reverse all words of length '2' in the given sentence.
[EX A]: a large long train no a steel track

[EX Q]: Sentence: 'a man and woman standing with luggage in a waiting area'. Reverse all words of length '7' in the given sentence.
[EX A]: a man and woman standing with egaggul in a gnitiaw area

[EX Q]: Sentence: 'a woman in a black hoodie crouched on street corner with a cellphone'. Reverse all words of length '4' in the given sentence.
[EX A]:
a woman in a black hoodie crouched on street corner htiw a cellphone