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 standing next to a parked car under a street sign'. Reverse all words of length '6' in the given sentence.
a man standing next to a dekrap car under a teerts sign

Sentence: 'a bathroom with white toilet and walls and blue accent bars'. Reverse all words of length '5' in the given sentence.
a bathroom with etihw toilet and sllaw and blue accent bars

Sentence: 'a plate of sprinkled doughnuts with a persons mouth open in the background'. Reverse all words of length '7' in the given sentence.

a plate of sprinkled doughnuts with a snosrep mouth open in the background