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dict_mystery4

Language/Type: Python collections dict

Write the dictionary returned when the following function is passed each of the following dictionaries. 

def mystery(dictionary):
    data = {}
    for (key, value) in dictionary.items():
        if value not in data:
            data[value] = set()
        data[value].add(key) 
    return data

Though dictionaries store their contents in unpredictable order, for this problem, write the pairs sorted by ordering of the keys. Write your answer in this format: {key: value, key: value}

{'hello': 4, 'world': 4, 'and': 3}
{'banana': 1, 'peach': 2, 'nectarine': 3, 'kiwi': 1, 'apple': 3}
{'the': 'and', 'and': 'the', 'is': 'the', 'has': 'the', 'and': 'and'}

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