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

Ex Input:
Operating profit fell to EUR 35.4 mn from EUR 68.8 mn in 2007 , including vessel sales gain of EUR 12.3 mn .

Ex Output:
negative

Ex Input:
Finnish business software group AffectoGenimap Oyj said its net profit halved to 1.2 mln euro ( $ 1.5 mln ) in the first nine months of 2006 from 2.2 mln euro ( $ 2.8 mln ) in the same period of 2005 .

Ex Output:
negative

Ex Input:
We have made long-term investments in developing the system 's implementation model .

Ex Output:
neutral