@array =
(
    { utterance => 'ja', score => 0.27 },
    { utterance => 'nein', score => 0.75 },
    { utterance => 'nein', score => 0.83 },
    { utterance => 'ja', score => 0.53 },
    { utterance => 'ja', score => 0.69 },
    { utterance => 'nicht wirklich', score => 0.59 },
    ...
);