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.

Q: Sentence: 'a pair of melted scissors on top of a reflective surface'. Reverse all words of length '7' in the given sentence.

A: a pair of melted scissors on top of a reflective ecafrus
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Q: Sentence: 'three giraffes looking over a wooden fence at two women'. Reverse all words of length '8' in the given sentence.

A: three seffarig looking over a wooden fence at two women
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Q: Sentence: 'a picture of some people talking to each other'. Reverse all words of length '7' in the given sentence.

A:
a erutcip of some people gniklat to each other
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