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 man riding a bike down a street past cars'. Reverse all words of length '4' in the given sentence.

SOLUTION: a man riding a ekib nwod a street tsap srac

PROBLEM: Sentence: 'three brown horses standing in a green field'. Reverse all words of length '5' in the given sentence.

SOLUTION: eerht nworb horses standing in a neerg dleif

PROBLEM: Sentence: 'one brush laying on top of another with both having zebra patterns'. Reverse all words of length '4' in the given sentence.

SOLUTION:
one brush laying on top of another htiw htob having zebra patterns