Definition: 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.
Input: Sentence: 'beach scene two blue chairs with yellow umbrella slight overcast blue sky and greenblue ocean'. Reverse all words of length '3' in the given sentence.

beach scene owt blue chairs with yellow umbrella slight overcast blue yks dna greenblue ocean