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 water bottle sitting on top of a counter'. Reverse all words of length '6' in the given sentence.

SOLUTION: a water elttob sitting on top of a counter

PROBLEM: Sentence: 'a crowd of people skiing and enjoying the snow'. Reverse all words of length '4' in the given sentence.

SOLUTION: a crowd of people skiing and enjoying the wons

PROBLEM: Sentence: 'the two buses are picking up people to bring to their destination'. Reverse all words of length '5' in the given sentence.

SOLUTION:
the two sesub are picking up people to gnirb to rieht destination