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.

Example Input: Sentence: 'the three trains are stopped on the railroad tracks'. Reverse all words of length '6' in the given sentence.
Example Output: the three sniart are stopped on the railroad skcart

Example Input: Sentence: 'a decorative umbrella and various other items on display'. Reverse all words of length '5' in the given sentence.
Example Output: a decorative umbrella and various rehto smeti on display

Example Input: Sentence: 'industrial kitchen with large metal vents over oven'. Reverse all words of length '4' in the given sentence.
Example Output:
industrial kitchen htiw large metal vents revo nevo