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: 'bathroom with a wall separating toilet and shower'. Reverse all words of length '1' in the given sentence.
bathroom with a wall separating toilet and shower

Sentence: 'a blue colored sign with a white arrow'. Reverse all words of length '1' in the given sentence.
a blue colored sign with a white arrow

Sentence: 'several people flying kites on a sandy beach'. Reverse all words of length '7' in the given sentence.

lareves people flying kites on a sandy beach