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.

[Q]: Sentence: 'a bunch of umbrellas are up in the air'. Reverse all words of length '9' in the given sentence.
[A]: a bunch of sallerbmu are up in the air


[Q]: Sentence: 'many vegetables are on the green kitchen counter'. Reverse all words of length '7' in the given sentence.
[A]: many vegetables are on the green nehctik retnuoc


[Q]: Sentence: 'man dressed in black skateboarding down a street'. Reverse all words of length '4' in the given sentence.
[A]:
man dressed in black skateboarding nwod a street