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: 'an elephant is standing in the road by the truck'. Reverse all words of length '5' in the given sentence.

Ex Output:
an elephant is standing in the road by the kcurt


Ex Input:
Sentence: 'a bent in half street sign next to a brick building'. Reverse all words of length '1' in the given sentence.

Ex Output:
a bent in half street sign next to a brick building


Ex Input:
Sentence: 'one zebra stands guard while the other eats on the savannah'. Reverse all words of length '3' in the given sentence.

Ex Output:

eno zebra stands guard while eht other eats on eht savannah