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.

[EX Q]: Sentence: 'a guy on  a surf board by a very big wave'. Reverse all words of length '3' in the given sentence.
[EX A]: a yug on a surf board by a very gib wave

[EX Q]: Sentence: 'a family room area without anybody in it'. Reverse all words of length '7' in the given sentence.
[EX A]: a family room area tuohtiw ydobyna in it

[EX Q]: Sentence: 'a family climbing up the side of a snow covered mountain with ski equipment'. Reverse all words of length '4' in the given sentence.
[EX A]:
a family climbing up the edis of a wons covered mountain htiw ski equipment