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.

Example Input: Sentence: 'a large bird stands on the ledge of a window'. Reverse all words of length '3' in the given sentence.
Example Output: a large bird stands on eht ledge of a window

Example Input: Sentence: 'the three trains are stopped on the railroad tracks'. Reverse all words of length '6' in the given sentence.
Example Output: the three sniart are stopped on the railroad skcart

Example Input: Sentence: 'the large bathroom has three sinks on the wall'. Reverse all words of length '2' in the given sentence.
Example Output:
the large bathroom has three sinks no the wall