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 black and white image of a wall with a stop sign on it'. Reverse all words of length '5' in the given sentence.
[EX A]: a kcalb and etihw egami of a wall with a stop sign on it

[EX Q]: Sentence: 'a person holding a yummy looking hot dog'. Reverse all words of length '7' in the given sentence.
[EX A]: a person gnidloh a yummy gnikool hot dog

[EX Q]: Sentence: 'yogurt bananas and grapes stand ready to make a smoothie'. Reverse all words of length '7' in the given sentence.
[EX A]:
yogurt sananab and grapes stand ready to make a smoothie