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 family room area without anybody in it'. Reverse all words of length '7' in the given sentence.
Example Output: a family room area tuohtiw ydobyna in it

Example Input: Sentence: 'a person holding a yummy looking hot dog'. Reverse all words of length '7' in the given sentence.
Example Output: a person gnidloh a yummy gnikool hot dog

Example Input: Sentence: 'guys playing video games at some type of convention'. Reverse all words of length '10' in the given sentence.
Example Output:
guys playing video games at some type of noitnevnoc