instruction:
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.
question:
Sentence: 'a snowy hill with a tree lined area'. Reverse all words of length '4' in the given sentence.
answer:
a snowy llih htiw a eert lined aera


question:
Sentence: 'four pink roses in a water filled dish bowl'. Reverse all words of length '4' in the given sentence.
answer:
ruof knip roses in a water filled hsid lwob


question:
Sentence: 'a yellow tent is covering people who are selling bananas'. Reverse all words of length '8' in the given sentence.
answer:

a yellow tent is gnirevoc people who are selling bananas