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: 'an elephant is standing in the road by the truck'. Reverse all words of length '5' in the given sentence.

Answer: an elephant is standing in the road by the kcurt


Question: Sentence: 'people watching a music concert being performed on a stage'. Reverse all words of length '5' in the given sentence.

Answer: people watching a cisum concert gnieb performed on a egats


Question: Sentence: 'a bear in a field next to a pond'. Reverse all words of length '5' in the given sentence.

Answer:
a bear in a dleif next to a pond