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: 'a baby wearing a bib setting at a table with food on it'. Reverse all words of length '7' in the given sentence.
Example Output: a baby gniraew a bib gnittes at a table with food on it

Example Input: Sentence: 'a dog that is in a living room near a group of people'. Reverse all words of length '5' in the given sentence.
Example Output: a dog that is in a living room near a puorg of people

Example Input: Sentence: 'a grill is holding four hot dogs next to nine containers of various condiments'. Reverse all words of length '2' in the given sentence.
Example Output:
a grill si holding four hot dogs next ot nine containers fo various condiments