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: 'three brown horses standing in a green field'. Reverse all words of length '5' in the given sentence.
[EX A]: eerht nworb horses standing in a neerg dleif

[EX Q]: Sentence: 'he is a serious baseball player and is ready for the pitch'. Reverse all words of length '5' in the given sentence.
[EX A]: he is a serious baseball player and is ydaer for the hctip

[EX Q]: Sentence: 'many cars drive down a busy street and people walk on the sidewalks'. Reverse all words of length '4' in the given sentence.
[EX A]:
ynam srac drive nwod a ysub street and people klaw on the sidewalks