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: 'giraffes are standing in the grass near water and trees'. Reverse all words of length '4' in the given sentence.
[EX A]: giraffes are standing in the grass raen water and trees

[EX Q]: Sentence: 'a person siting on the ground and decorating a parking meter'. Reverse all words of length '5' in the given sentence.
[EX A]: a person siting on the ground and decorating a parking retem

[EX Q]: Sentence: 'a desk sitting next to a refrigerator microwave oven and mirror'. Reverse all words of length '4' in the given sentence.
[EX A]:
a ksed sitting txen to a refrigerator microwave nevo and mirror