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.

Sentence: 'a large elephant standing in the wild'. Reverse all words of length '5' in the given sentence.
a egral elephant standing in the wild

Sentence: 'a person at a zoo looking over the fence of a giraffe enclosure'. Reverse all words of length '6' in the given sentence.
a nosrep at a zoo looking over the fence of a giraffe enclosure

Sentence: 'many people are walking around on the street'. Reverse all words of length '6' in the given sentence.

many elpoep are walking dnuora on the teerts