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 snowy hill with a tree lined area'. Reverse all words of length '4' in the given sentence.
[A]: a snowy llih htiw a eert lined aera


[Q]: Sentence: 'two motorcycles driving on road one making a left hand turn'. Reverse all words of length '7' in the given sentence.
[A]: two motorcycles gnivird on road one making a left hand turn


[Q]: Sentence: 'a herd of elephants young and old stand in a field'. Reverse all words of length '5' in the given sentence.
[A]:
a herd of elephants gnuoy and old dnats in a dleif