instruction:
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.
question:
Sentence: 'a couple of giraffes standing in front of a metal fence'. Reverse all words of length '8' in the given sentence.
answer:
a couple of seffarig gnidnats in front of a metal fence


question:
Sentence: 'a man that is sitting in a field with a phone'. Reverse all words of length '4' in the given sentence.
answer:
a man taht is sitting in a field htiw a phone


question:
Sentence: 'a child standing at the sink holding the faucet of a toy kitchen'. Reverse all words of length '3' in the given sentence.
answer:

a child standing at eht sink holding eht faucet of a yot kitchen