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: 'people at an outdoor market with piles of green and yellow bananas'. Reverse all words of length '5' in the given sentence.

people at an outdoor market with selip of neerg and yellow bananas