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.

Sentence: 'a child is inside standing on a skateboard'. Reverse all words of length '6' in the given sentence.
a child is edisni standing on a skateboard

Sentence: 'this goat is standing near a wire fence'. Reverse all words of length '5' in the given sentence.
this goat is standing near a wire ecnef

Sentence: 'a young brown horse in a blue jacket running in a barn'. Reverse all words of length '4' in the given sentence.

a young brown horse in a eulb jacket running in a nrab