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: 'a person wearing a black jacket is standing next to a horse'. Reverse all words of length '8' in the given sentence.
Example Output: a person wearing a black jacket is gnidnats next to a horse

Example Input: Sentence: 'a bunch off stuffed animals are on a car'. Reverse all words of length '7' in the given sentence.
Example Output: a bunch off deffuts slamina are on a car

Example Input: Sentence: 'two birds are sitting on the edge of a crevice'. Reverse all words of length '5' in the given sentence.
Example Output:
two sdrib are sitting on the edge of a crevice