Classify the given a piece of financial news into three classes: positive, negative, and neutral. Output must be 'positive', 'negative', or 'neutral'.

Ex Input:
In February the Elcoteq group sold its St Petersburg facility ; according to unconfirmed information the reason could have been supply problems because of the Russian customs service .

Ex Output:
negative

Ex Input:
Fortum had previously bought the state-held stake in TGK-10 from RAO UES during its reform .

Ex Output:
neutral

Ex Input:
'' There 's the issue of thieves stealing them from building sites , '' said Mr Smith .

Ex Output:
negative