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 addition , Kone signed a two-year maintenance contract for the escalators .

Ex Output:
positive

Ex Input:
YIT Construction and the town of Riihim+ki have signed a lease contract whereby the town will occupy the Travel Centre office facilities .

Ex Output:
positive

Ex Input:
Both operating profit and net sales for the three-month period increased , respectively from EUR16 .0 m and EUR139m , as compared to the corresponding quarter in 2006 .

Ex Output:
positive