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 room with an open suitcase on the floor and clothes strewn about'. Reverse all words of length '2' in the given sentence.
a room with na open suitcase no the floor and clothes strewn about

Sentence: 'a group of people riding in a black raft'. Reverse all words of length '1' in the given sentence.
a group of people riding in a black raft

Sentence: 'a brown teddy bear sitting on a swing'. Reverse all words of length '2' in the given sentence.

a brown teddy bear sitting no a swing