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 living room filled with furniture and windows'. Reverse all words of length '1' in the given sentence.
a living room filled with furniture and windows

Sentence: 'wooden train passing through a forested hilly area'. Reverse all words of length '1' in the given sentence.
wooden train passing through a forested hilly area

Sentence: 'an small plane is taking off from a field'. Reverse all words of length '1' in the given sentence.

an small plane is taking off from a field