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 bus with lots of big tires sitting parked on a street'. Reverse all words of length '6' in the given sentence.

SOLUTION: a bus with lots of big tires sitting dekrap on a teerts

PROBLEM: Sentence: 'a tennis player is holding a tennis racket with the crowd in the background'. Reverse all words of length '3' in the given sentence.

SOLUTION: a tennis player is holding a tennis racket with eht crowd in eht background

PROBLEM: Sentence: 'the giraffes are standing by each other outside'. Reverse all words of length '8' in the given sentence.

SOLUTION:
the seffarig are gnidnats by each other outside