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: 'a red double decker bus parked in front of a building'. Reverse all words of length '1' in the given sentence.

SOLUTION: a red double decker bus parked in front of a building

PROBLEM: Sentence: 'a group of snow boarders pose in the snow on top of a hill'. Reverse all words of length '5' in the given sentence.

SOLUTION: a puorg of snow boarders pose in the snow on top of a hill

PROBLEM: Sentence: 'a large elephant standing in a fenced enclosure'. Reverse all words of length '2' in the given sentence.

SOLUTION:
a large elephant standing ni a fenced enclosure