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

Kesko pursues a strategy of healthy , focused growth concentrating on sales and services to consumer-customers .
positive

UPM stock fell 3 percent to EURO 12.49 $ 17.24 in early afternoon trading in Helsinki .
negative

In the reporting period , net sales rose by 8 % year-on-year to EUR64 .3 m , due to the business acquisitions realized during the first half of 2008-09 , the effect of which was EUR10 .9 m in the review period .
positive