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.

[EX Q]: Sentence: 'there is a group of people standing on the beach'. Reverse all words of length '8' in the given sentence.
[EX A]: there is a group of people gnidnats on the beach

[EX Q]: Sentence: 'a skateboarder riding down a rail during the day'. Reverse all words of length '3' in the given sentence.
[EX A]: a skateboarder riding down a rail during eht yad

[EX Q]: Sentence: 'a slatted park bench that appears to be painted with the colors of the rainbow in the sun and shade'. Reverse all words of length '5' in the given sentence.
[EX A]:
a slatted park hcneb that appears to be painted with the colors of the rainbow in the sun and edahs