TASK 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.
PROBLEM: Sentence: 'airplane flying in front of mountains and clouds'. Reverse all words of length '2' in the given sentence.

SOLUTION: airplane flying ni front fo mountains and clouds

PROBLEM: Sentence: 'many pairs of open scissors sit on top of metal poles'. Reverse all words of length '4' in the given sentence.

SOLUTION: ynam pairs of nepo scissors sit on top of metal poles

PROBLEM: Sentence: 'a person performing a trick with his skateboard'. Reverse all words of length '1' in the given sentence.

SOLUTION:
a person performing a trick with his skateboard