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 hand reaching out towards a standing giraffe'. Reverse all words of length '7' in the given sentence.
answer:
a hand reaching out sdrawot a standing effarig


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 man riding on the back of an elephant carrying a giant log'. Reverse all words of length '8' in the given sentence.
answer:

a man riding on the back of an tnahpele gniyrrac a giant log