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.

[EX Q]: Sentence: 'airplane flying in front of mountains and clouds'. Reverse all words of length '2' in the given sentence.
[EX A]: airplane flying ni front fo mountains and clouds

[EX Q]: Sentence: 'a messy room painted green with debris on the ground and birds appear to be in the room'. Reverse all words of length '1' in the given sentence.
[EX A]: a messy room painted green with debris on the ground and birds appear to be in the room

[EX Q]: Sentence: 'the three trains are stopped on the railroad tracks'. Reverse all words of length '6' in the given sentence.
[EX A]:
the three sniart are stopped on the railroad skcart