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

Operating income rose to EUR 696.4 mn from EUR 600.3 mn in 2009 .
positive

Entire paper mills may be set up , especially in the new EU member states .
neutral

The reasons behind the estimate include the rise in 2008 rent levels and several fully-leased office and retail properties , which were completed and added to the company 's investment property portfolio .

neutral

