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 close up of the front of a train on train tracks'. Reverse all words of length '3' in the given sentence.
[EX A]: a close up of eht front of a train on train tracks

[EX Q]: Sentence: 'a backyard with a chair covered in snow'. Reverse all words of length '4' in the given sentence.
[EX A]: a backyard htiw a chair covered in wons

[EX Q]: Sentence: 'people standing around looking at motorcycles in a parking lot'. Reverse all words of length '8' in the given sentence.
[EX A]:
people gnidnats around looking at motorcycles in a parking lot