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: Operating profit totalled EUR 21.1 mn , up from EUR 18.6 mn in 2007 , representing 9.7 % of net sales .

Output: positive

Input: Consider Input: '' The sale of the oxygen measurement business strengthens our goal to focus on our chosen market segments .

Output: neutral

Input: Consider Input: F-Secure also point out the logical weakness in the sequenced numbers of a card approach that has apparently already been utilised .
Output: negative