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 group of snow boarders pose in the snow on top of a hill'. Reverse all words of length '5' in the given sentence.
[EX A]: a puorg of snow boarders pose in the snow on top of a hill

[EX Q]: Sentence: 'a red two story bus travels along a road'. Reverse all words of length '5' in the given sentence.
[EX A]: a red two yrots bus travels gnola a road

[EX Q]: Sentence: 'a woman wearing a pearl necklace is holding a cell phone'. Reverse all words of length '7' in the given sentence.
[EX A]:
a woman gniraew a pearl necklace is gnidloh a cell phone