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: 'a person in bear feet standing on a skateboard'. Reverse all words of length '4' in the given sentence.

Answer: a person in raeb teef standing on a skateboard


Question: Sentence: 'an orange longhorn bull stands among the herd'. Reverse all words of length '2' in the given sentence.

Answer: na orange longhorn bull stands among the herd


Question: Sentence: 'a giraffe all alone standing around while in a fence'. Reverse all words of length '8' in the given sentence.

Answer:
a giraffe all alone gnidnats around while in a fence