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.

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

Sentence: 'dog lying on bottom of enclosed area with people'. Reverse all words of length '5' in the given sentence.
dog gniyl on bottom of enclosed area with people

Sentence: 'sailing vessels are on a waterway within view of a lighthouse'. Reverse all words of length '2' in the given sentence.

sailing vessels are no a waterway within view fo a lighthouse