>>> from mes_proper import extreu

>>> mostra1 = 'setosa 0.1  0.5 0.43 0.21'
>>> etiq, dades = extreu(mostra1)
>>> etiq
'setosa'
>>> dades
[0.1, 0.5, 0.43, 0.21]

>>> mostra2 = 'virginica 0.81 0.73 0.75 0.1 0.68 0.23'
>>> etiq, dades = extreu(mostra2)
>>> etiq
'virginica'
>>> dades
[0.81, 0.73, 0.75, 0.1, 0.68, 0.23]

>>> mostra2 = 'virginica  0.81 0.73    0.75  0.1 0.68     0.23'
>>> etiq, dades = extreu(mostra2)
>>> etiq
'virginica'
>>> dades
[0.81, 0.73, 0.75, 0.1, 0.68, 0.23]