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: 'the woman and the man stand together playing the video game in the house'. Reverse all words of length '4' in the given sentence.

the woman and the man stand together playing the video emag in the house