Definition: 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.
Input: Sentence: 'three people standing in the snow with skis in their hands'. Reverse all words of length '5' in the given sentence.

eerht people standing in the snow with skis in rieht sdnah