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 large delta airlines airplane on the runway'. Reverse all words of length '6' in the given sentence.
Example Output: a large delta airlines airplane on the yawnur

Example Input: Sentence: 'a frosty car hood shows with a stop sign'. Reverse all words of length '5' in the given sentence.
Example Output: a frosty car hood swohs with a stop sign

Example Input: Sentence: 'a woman holding a piece of luggage wearing purple'. Reverse all words of length '7' in the given sentence.
Example Output:
a woman gnidloh a piece of egaggul gniraew purple