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 tennis player is swinging at a tennis ball'. Reverse all words of length '2' in the given sentence.

SOLUTION: a tennis player si swinging ta a tennis ball

PROBLEM: Sentence: 'the bicyclists race toward an old brick church'. Reverse all words of length '2' in the given sentence.

SOLUTION: the bicyclists race toward na old brick church

PROBLEM: Sentence: 'several clocks set at different times hanging above a doorway'. Reverse all words of length '3' in the given sentence.

SOLUTION:
several clocks tes at different times hanging above a doorway