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 group of skiers standing at the base of a mountain'. Reverse all words of length '3' in the given sentence.
[EX A]: a group of skiers standing at eht base of a mountain

[EX Q]: Sentence: 'two motorcycles driving on road one making a left hand turn'. Reverse all words of length '7' in the given sentence.
[EX A]: two motorcycles gnivird on road one making a left hand turn

[EX Q]: Sentence: 'a street sign with brick buildings in the back'. Reverse all words of length '1' in the given sentence.
[EX A]:
a street sign with brick buildings in the back