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: 'man taking photos of a variety of different kites being flown'. Reverse all words of length '9' in the given sentence.

man taking photos of a variety of tnereffid kites being flown