Please provide me with the different case forms of the word 'Собака' (Dog) in Russian, formatted as JSON. The output should look like this: 
{'Nominative': 'Example',
 'Genitive': 'Example',
 'Dative': 'Example',
 'Accusative': 'Example',
 'Instrumental': 'Example',
 'Prepositional': 'Example'} Respond with more than 11 words be in all capital letters.
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