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.

[Q]: Sentence: 'teenagers riding skateboards in a concrete skate park'. Reverse all words of length '1' in the given sentence.
[A]: teenagers riding skateboards in a concrete skate park


[Q]: Sentence: 'a group of people para sailing on a beach'. Reverse all words of length '5' in the given sentence.
[A]: a puorg of people para sailing on a hcaeb


[Q]: Sentence: 'a big giraffe walks through a forest'. Reverse all words of length '6' in the given sentence.
[A]:
a big giraffe walks through a tserof