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

Input: Consider Input: Vaisala Oyj Press Release September 30 , 2010 Vaisala has signed a contract to sell its oxygen measurement technology and business to SICK Maihak GmbH .

Output: positive

Input: Consider Input: 18 January 2010 - Finnish IT consultancy Trainers ' House Oyj HEL : TRH1V said last Friday it resolved to issue a EUR5m hybrid bond to domestic investors in a bid to strengthen its capital structure .

Output: positive

Input: Consider Input: ADP News - Apr 22 , 2009 - Finnish business information systems developer Solteq Oyj HEL : STQ1V said today its net loss widened to EUR 189,000 USD 245,000 for the first quarter of 2009 from EUR 10,000 for the same peri
Output: negative