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.

Example Input: Sentence: 'an alarm clock sitting with other objects in a window sill'. Reverse all words of length '5' in the given sentence.
Example Output: an mrala kcolc sitting with rehto objects in a window sill

Example Input: Sentence: 'a birthday cake cut in different pieces sitting on a tray at a table'. Reverse all words of length '1' in the given sentence.
Example Output: a birthday cake cut in different pieces sitting on a tray at a table

Example Input: Sentence: 'there is a woman riding a bike and holding a umbrella'. Reverse all words of length '4' in the given sentence.
Example Output:
there is a woman riding a ekib and holding a umbrella