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 man standing next to a parked car under a street sign'. Reverse all words of length '6' in the given sentence.

Ex Output:
a man standing next to a dekrap car under a teerts sign


Ex Input:
Sentence: 'a red double decker bus parked next to a brick building'. Reverse all words of length '4' in the given sentence.

Ex Output:
a red double decker bus parked txen to a brick building


Ex Input:
Sentence: 'bear sleeping on tree branch with leaves and sky'. Reverse all words of length '4' in the given sentence.

Ex Output:

raeb sleeping on eert branch htiw leaves and sky