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: 'this is people standing in a field with kites'. Reverse all words of length '8' in the given sentence.
this is people gnidnats in a field with kites

Sentence: 'a griaffe eating from a tall basket at a zoo'. Reverse all words of length '2' in the given sentence.
a griaffe eating from a tall basket ta a zoo

Sentence: 'a man watches a woman behind a counter use a cell phone'. Reverse all words of length '5' in the given sentence.

a man watches a namow behind a counter use a cell enohp