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 bride and groom holding a knife to a three tier wedding cake'. Reverse all words of length '1' in the given sentence.

Answer: a bride and groom holding a knife to a three tier wedding cake


Question: Sentence: 'the firetruck carried the firefighters to the fire to put the blaze out'. Reverse all words of length '3' in the given sentence.

Answer: eht firetruck carried eht firefighters to eht fire to tup eht blaze tuo


Question: Sentence: 'a cat stands next to a rocking chair in a room with floors that are covered in a thin sheet'. Reverse all words of length '7' in the given sentence.

Answer:
a cat stands next to a gnikcor chair in a room with floors that are derevoc in a thin sheet