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.
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Question: Sentence: 'a bicycle parked on a bridge next to a marina'. Reverse all words of length '4' in the given sentence.

Answer: a bicycle parked on a bridge txen to a marina


Question: Sentence: 'a group of motorcycle riders one with a side car'. Reverse all words of length '6' in the given sentence.

Answer: a group of motorcycle sredir one with a side car


Question: Sentence: 'it is out in the open with various things in viewpoint'. Reverse all words of length '9' in the given sentence.

Answer:
it is out in the open with various things in tniopweiv