catalog = {
    'city':
        [
            'new york',
            'houston',
            'philadelphia',
            'chicago',
            'san diego'
        ],

    'sports':
        [
            'football',
            'soccer',
            'tennis',
            'golf',
            'hockey'
        ],
    'food':
        [
            'rice pudding',
            'buffalo wing',
            'cheesecake',
            'hamburger'
        ],
    'animals':
        [
            'cat',
            'tiger',
            'dog',
            'snakes',
            'horse',
            'bird',
            'deer'
        ],
    'fashion':
        [
            'Dickies',
            'DKNY',
            'Dockers',
            'Fornasetti',
            'Fossil',
        ]
}
