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.

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

[EX Q]: Sentence: 'a keyboard a mouse a monitor and a brown table'. Reverse all words of length '3' in the given sentence.
[EX A]: a keyboard a mouse a monitor dna a brown table

[EX Q]: Sentence: 'man dressed in suit standing in front of a christmas tree'. Reverse all words of length '3' in the given sentence.
[EX A]:
nam dressed in suit standing in front of a christmas tree