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 Input:
Sentence: 'a person holding a yummy looking hot dog'. Reverse all words of length '7' in the given sentence.

Ex Output:
a person gnidloh a yummy gnikool hot dog


Ex Input:
Sentence: 'a man and woman standing with luggage in a waiting area'. Reverse all words of length '7' in the given sentence.

Ex Output:
a man and woman standing with egaggul in a gnitiaw area


Ex Input:
Sentence: 'a kitchen  counter top with a microwave oven on it'. Reverse all words of length '2' in the given sentence.

Ex Output:

a kitchen counter top with a microwave oven no ti