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: 'two young boys standing on grass near a fence'. Reverse all words of length '8' in the given sentence.

Answer: two young boys gnidnats on grass near a fence


Question: Sentence: 'a very large truck with people in back on a city street'. Reverse all words of length '6' in the given sentence.

Answer: a very large truck with elpoep in back on a city teerts


Question: Sentence: 'several cars are parked in front of a building'. Reverse all words of length '4' in the given sentence.

Answer:
several srac are parked in front of a building