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: 'black and silver fire hydrant sitting next to a road'. Reverse all words of length '7' in the given sentence.

Answer: black and silver fire tnardyh gnittis next to a road

Question: Sentence: 'a chair and a table against a stone wall with a red clock and decorations on display'. Reverse all words of length '4' in the given sentence.

Answer: a chair and a table against a stone llaw htiw a red clock and decorations on display

Question: Sentence: 'ladies serving up blue trays of cafeteria food'. Reverse all words of length '2' in the given sentence.

Answer:
ladies serving pu blue trays fo cafeteria food