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 man sitting in a boat with a tv'. Reverse all words of length '7' in the given sentence.
a man gnittis in a boat with a tv

Sentence: 'a sandwich that is on a plate on a table'. Reverse all words of length '8' in the given sentence.
a hciwdnas that is on a plate on a table

Sentence: 'street sign on overhanging post displayed above roadway'. Reverse all words of length '9' in the given sentence.

street sign on overhanging post deyalpsid above roadway