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

Sentence: 'a bent in half street sign next to a brick building'. Reverse all words of length '1' in the given sentence.
a bent in half street sign next to a brick building

Sentence: 'a modestlysized kitchen sits unoccupied in the morning'. Reverse all words of length '3' in the given sentence.

a modestlysized kitchen sits unoccupied in eht morning