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 male cow walking down a street with shanties'. Reverse all words of length '7' in the given sentence.

Answer: a male cow gniklaw down a street with shanties


Question: Sentence: 'a couple of toothbrushes that are on a towel'. Reverse all words of length '6' in the given sentence.

Answer: a elpuoc of toothbrushes that are on a towel


Question: Sentence: 'there is a person playing a nintendo wii'. Reverse all words of length '7' in the given sentence.

Answer:
there is a person gniyalp a nintendo wii