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: 'a blie bag is sitting on a desk'. Reverse all words of length '2' in the given sentence.

A: a blie bag si sitting no a desk
****
Q: Sentence: 'a wooden pole with multiple street signs mounted on it'. Reverse all words of length '2' in the given sentence.

A: a wooden pole with multiple street signs mounted no ti
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Q: Sentence: 'a stop sign in the foreground and another stop sign in the background'. Reverse all words of length '4' in the given sentence.

A:
a pots ngis in the foreground and another pots ngis in the background
****