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 traffic light with road instructions directs traffic'. Reverse all words of length '4' in the given sentence.

Answer: a traffic light htiw daor instructions directs traffic


Question: Sentence: 'a plate with a very big pile of cake with candles'. Reverse all words of length '4' in the given sentence.

Answer: a plate htiw a yrev big elip of ekac htiw candles


Question: Sentence: 'a plate of chicken a bun and french fries'. Reverse all words of length '7' in the given sentence.

Answer:
a plate of nekcihc a bun and french fries