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: It estimates the operating profit to further improve from the third quarter .

Output: positive

Input: Consider Input: Tiimari operates 194 stores in six countries -- including its core Finnish market -- and generated a turnover of 76.5 mln eur in 2005 .

Output: neutral

Input: Consider Input: Finnish paper maker UPM-Kymmene Corp. on Monday announced the sale of its wrapping unit Walki Wisa to the CapMan investment group in a move to further concentrate on its core business .
Output: neutral