>>> from fair import decode

>>> dic = {'cheese': 'food', 'leather': 'handicraft',
...        'sausages': 'food', 'cakes': 'food',
...        'dresses': 'handicraft', 'jewels': 'handicraft'}
>>> decode('joan pera;2.2;cheese\n', dic)
('joan pera', 2.2, 'food')
>>> decode('narcis punti;1.9;leather\n', dic)
('narcis punti', 1.9, 'handicraft')
>>> decode('georgina pi;1.8;jewels\n', dic)
('georgina pi', 1.8, 'handicraft')